IMAGE  EVALUATION 
TEST  TARGET  (MT-3) 


k 


^ 


?Ss^^ 


<.  <f 


fe 


% 


1.0 


I.I 


111=  - 


1^12.8 

■  50     *^* 

^  m 

lis 

us 


2.5 


«4  0 


2.2 

18 


14    III  1.6 


Photographic 

Sciences 
Corporation 


23  WEST  MAIN  STREET 

WEBSTER,  N.Y.  14580 

(716)  872-4503 


/ifiS 


^<f 


rv* 


'^ 


CIHM/ICMH 

Microfiche 

Senes. 


CIHM/ICIVIH 
Collection  de 
microfiches. 


Canadian  institute  for  Historicai  Microreprcductions  /  Institut  Canadian  de  miooreproductions  hij*tori(|ues 


Technical  and  Bibliographic  Notas/Notas  tachniquas  at  bibliographiquaa 


Tha  instituta  has  attamptad  to  obtain  tha  ba«t 
orisinal  copy  availobia  for  filming-  Faaturas  of  this 
copy  which  may  ba  bibliographically  uniqua, 
which  may  aitwr  any  of  tha  imagas  in  tha 
raprcduction,  or  which  may  sigr.ificantly  changa 
tha  usual  mathod  of  filming,  are  chackad  balow. 


D 


D 


D 


G 


Colourad  covars/ 
Couvartura  da  coulaur 


j      I    Covars  damagad/ 


Couvartura  andommag6a 

Covars  rautorad  and/or  laminatad/ 
Couvartura  rastauris  at/ou  pallicul6e 

Covar  titia  missing/ 

La  titra  da  ccuvartura  manqua 

Colourad  maps/ 

Cartas  gAographiquas  an  coulaur 

Colourad  ink  (i.a.  othar  than  blua  or  black)/ 
Encra  da  coulaur  (i.a.  autr»  qua  blaua  oj  noira) 

Colourad  platas  and/or  illustrations/ 
Planchas  at/ou  hlustrations  an  coulaur 


Bound  with  othar  matarial/ 
RaiiA  avac  d'autrair  documents 


|T7|    Tight  binding  may  causa  shadows  or  distortion 


along  interior  margin/ 

La  reliura  serrie  peut  causer  de  I'ombra  ou  da  la 

distortion  la  long  da  la  marge  intirieure 

Blank  leaves  added  during  restoration  may 
appear  within  the  text.  Whenever  possible,  these 
have  been  omitted  7roin  filming/ 
II  se  peut  que  certaines  pages  blanches  ajoutias 
lors  d'une  restauration  apparaissent  dans  la  texte, 
mais,  lorsque  cela  6taii  possible,  ces  pages  n'ont 
pas  6t6  filmAes. 

Additional  comments:/ 
Commentaires  supplAmsntaires. 


Tl 
tc 


L'Institut  a  microfilm^  la  meilleur  exemplaire 
qu'il  lu!  a  6tt  poasibia  da  se  procurer.  \e8  ditaiis 
de  cet  exemplaire  qui  sont  peut-Atre  uniques  du 
point  de  vue  bibliographique,  qui  peuvent  modifier 
une  image  reproduite,  ou  qui  peuvent  axiger  une 
modification  dans  la  mithoda  normale  de  filmage 
sont  indiquAs  ci-dessous. 


□   Coloured  pages/ 
Pages  da  couieur 

□    Pages  damaged/ 
Pages  endommai 


Pages  endommagias 

Pages  restored  and/or  laminated/ 
Pages  restaur^es  at/ou  pellicuiies 

Pages  discoloured,  stained  or  foxed/ 
Pages  d^coloraes,  tachet^es  ou  piquAas 


Tl 

P 
o 
fi 


0 
bi 
th 
si 
01 
fi 
si 
01 


□    Pages  detached/ 
Pages  d6tach6es 


Of 


Showthrough/ 
Transparence 


□    Quality  of  print  varies/ 
Quality  inigaia  de  I'impression 

I      I    Includes  supplementary  material/ 


n 


Comprand  du  materia!  supplimentaire 

Only  edition  available/ 
Seule  Mition  disponible 


Tl 
si 

Tl 
w 

M 
di 
ei 
b( 
ri! 
re 
m 


Pages  wholly  or  partially  obscured  by  errata 
slips,  tissues,  etc.,  have  been  refilmed  to 
ensure  the  best  possible  image/ 
Les  pages  totalement  ou  partiellement 
obscurcies  par  un  feuillet  d'erreta,  une  pelure, 
etc.,  ont  6tA  filmies  A  nouveau  de  fu^on  A 
obtenir  la  meilleure  image  possible. 


This  item  is  filmiid  a!  the  reduction  ratio  checked  below/ 

Ce  document  est  film*  au  taux  de  reduction  indiquA  ci-desnous. 

10X  14X  18X  22X 


26X 


30X 


T 


y 


1?X 


16X 


20X 


24X 


28X 


32X 


ails 

du 

idifier 

une 

nage 


The  copy  filmed  here  has  been  reproduced  thanks 
to  the  generosity  of: 

Library, 

National  Museums  of  Canada 

The  images  appearing  here  are  the  best  quality 
possible  considering  the  condition  and  legibility 
of  the  original  copy  and  in  keeping  with  the 
filming  contract  specifications. 


L'exempiaire  film6  fut  reproduSt  grfice  A  la 
g4n6rosit6  de: 

Bibliothdque 

Mustes  Nationaux  du  Canada 

Les  images  suivantes  ont  6t6  reproduites  avec  le 
plus  grand  soin,  compte  tenu  de  la  condition  et 
de  la  nottetd  de  l'exempiaire  filrn^,  et  en 
conformit6  avec  les  conditions  du  contrat  de 
filmage. 


Original  copies  in  printed  (taper  covers  are  filmed 
beginning  with  the  front  cover  and  ending  on 
the  last  page  with  a  printed  or  illustrated  i.npres- 
sion,  or  the  back  cover  when  appropriate.  All 
other  original  copies  are  filmed  beginning  on  the 
first  page  with  a  printed  or  illustrated  impres- 
sion, and  ending  on  the  last  paga  with  a  printed 
or  illustrated  impression. 


The  last  recorded  frame  on  each  microfiche 
shall  contain  the  symbol  --^•(meaning  "CON- 
TINUED"), or  the  symbol  V  (meaninp  "END"), 
whichever  applies. 


Les  exemplaires  originaux  dont  la  couverture  en 
papier  est  imprim^e  sont  film6s  en  commen9ant 
par  le  premier  plat  et  en  terminant  soit  par  la 
dernidre  page  qui  comporte  une  empreinte 
d'impression  ou  d'illustration,  poit  per  le  second 
plat,  salon  le  c&s.  Tous  les  autres  exemplaires 
originaux  sont  film6s  en  commenpant  par  la 
premiere  page  qui  conrtporte  une  empreinte 
d'imprestiion  ou  d'illustration  et  en  terminant  par 
la  dernidre  page  qui  comporte  une  telle 
empreinte. 

Un  das  symboles  suivants  apparaitra  sur  la 
dernidre  image  de  cheque  microfiche,  selon  le 
cas:  le  iiymboie  — »>  signifie  "A  SUIVRE",  le 
symbole  V  signifie  "FIN". 


Maps,  plates,  charts,  etc.,  may  be  filmed  at 
different  reduction  ratios.  Those  too  large  to  be 
entirely  included  in  one  exposure  are  filmed 
beginning  in  the  upper  left  hand  corner,  left  to 
right  and  top  to  bottom,  as  many  frames  as 
required.  The  following  diagrams  illustrate  the 
method: 


Les  cartes,  planches,  tableaux,  etc.,  peuvent  Atre 
film^s  A  des  taux  de  reduction  diff6rents. 
Lorsque  le  document  est  trop  grand  pour  dtre 
reproduit  en  un  soul  clichi,  il  est  film^  A  partir 
de  Tangle  supdrieur  gauche,  de  gauche  d  droite, 
et  de  haut  en  bas,  en  prenant  ie  nombre 
d'images  ndcessaire.  Les  diagrammes  suivants 
iilustrent  la  mithode. 


rata 
i 


elure. 


3 


ax 


1  2  3 


1 

2 

3 

4 

5 

6 

m^^a 


ft 


.HE,         'J 


M'' 


n\ 


k 


,,^l 


■^%^ 


,f 


\ 


% 


1^' 
SMITHSONIAN    INSTITUTION. 

UNITED  STx\:'ril,S  NATIONAL  MUSEUM. 


//^   4'^ 


BULLETIN 


:"Vi 


Ol-'     THF 


UNriED    STATES   NATIONAL    MUSEUM. 


C- 

w 


m 


ISTo.  48. 


CONTRIBUTION  TOWAl/D  A  MONOGJIAPH  OF  THE  INSECTS 

OF  THE  LEPIDOPl'EROUS  FAMILY  NO(!TUIDi:  OF 

BOREAL  NORTH  AMERICA.-A  REl^SION 

OF   THE   DELTOID    MOTHS. 


ilY 


% 


i] 


111 


J()h:n^  15.  s:\nTn,  sc.  d., 

Professor  of  Kiilomolotiy  in  .'{iil(jcra  Collcoe. 


^LIMAKYv    " 

NAKGNAL-MUSEtTM 
OF  CANADA 


WASIIINCJTOX: 

GrOVKiiiJiViiiJVJT    IMMNTINU    OFFICE. 
18U5. 


V)' 


i^o^'^ 


ADYEETISEMEKT, 


Tliis  Avork  (Bulletin  No.  48)  is  one  of  a  series  of  papers  intended  to 
illustrate  the  collections  belonging  to  the  LTuited  States,  and  constitut- 
ing the  National  Museum,  of  which  the  Smithsonian  Institution  was 
placed  in  charge  by  the  act  of  Congress  of  August  10,  184G. 

Tlie  publications  of  the  National  Museum  consist  of  two  series — the 
Bulletins,  of  which  this  is  No.  48,  in  continuous  series,  and  the  Proceed- 
ings, of  Miiich  tlie  seventeenth  volume  is  now  in  press.  A  small  edition 
of  each  paper  in  the  Proceedings  is  distributed  in  pamphlet  form  to 
specialists  in  advance  of  the  publication  of  the  bound  volume. 

The  Bulletins  of  the  National  ^Fuseum,  the  publication  of  which  was 
comnien(;ed  in  1875,  consist  of  elaborate  papers  based  upon  the  collec- 
tions of  the  Museum,  reports  of  expeditions,  etc.,  Avhile  the  Proceed- 
ings facilitate  the  prompt  i>ubli(;ution  of  freshly-acijuired  facts  relating 
to  biology,  anthropology,  and  geology,  descriptions  of  restricted  groups 
of  animals  aiul  plants,  the  discussion  of  particular  questions  relative 
to  the  synonymy  of  species,  and  the  diaries  of  minor  expeditions. 

Other  papers,  of  more  general  popular  interest,  are  printed  in  the 
Ap])endix  to  the  Annual  Beport. 

Full  lists  of  the  publications  of  the  Museum  maybe  found  in  the  cur- 
rent catalogues  of  the  publications  of  the  Smithsonian  Institution. 

Papers  intended  for  publication  in  the  Proceedings  and  Bulletins  of 
the  National  Museum  are  referred  to  the  Committee  on  Publications, 
composed  as  follows:  F.  W.  True  (chairman),  E.  Edward  Earll  (editor), 
T.  11.  Bean,  Otis  T.  Mason,  Leonhard  Stejneger,  and  Lester  F.  Ward. 

S.  P.  Langley, 
Secretary  of  the  Stnithsonian  TnstitKtion. 

Washington,  D.  C,  October  8,  1894. 
II 


TBI 


CONTRIBCTIONS  TOWARD  A  MONOGRAPH 


OB- 


THE  INSECTS  OF  THE  LEPIDOPTEROUS  FAMILY  NOCTUIDI 


OP 


BOREAL  NORTH  AMERICA. 


A  REVISION  OF  THE  DELTOID  MOTHS. 


BY 


JOHN   B.  SMITH,  Sc.  D., 

Professor  of  Entomology  in  Itutgera  College. 


«♦> 


WASHINGTON: 

GOVERNMENT  PRINTING   OFFICE. 
1895. 


I 


TABLE  OF  COXTEXT:^ 


I'apo. 

Introductory  roniarlvs  and  definitions 1-3 

Genera  wrongly  classed  a?*  Deltoids 3, -t 

Division  into  tribes 4 

Antennal  luicnliarities 4-6 

Sexual  niodilication  of  male  legs 6-8 

Genera  discussed lt-13 

Acknowledgments 13 

Synopsis  of  tribes  and  genera 13. 14 

Genn8i;pi/,Ki'xi.s la-27 

characters  and  scbenio  of  division - 15-17 

analysis  of  the  sp  jcies 17 

descriptions  of  tl  e  species 17-27 

Genus  Zanclognatha - 27-45 

charactera  and  Hchcme  of  division 27-31 

analysis  of  tin?  s])ecies 31,  32 

descriptions  of  the  species 32-45 

Genus  Hormisa 45-50 

characters  and  scheme  of  division 45,  46 

analysis  of  the  s])ecics 46 

descriptions  of  tlie  species 46-50 

Genus  Piiii.omktha 50-54 

characters  of  the  genus  and  species 5l\  51 

analysis  of  the  species 51 

descriptions  of  the  sjjecies :  .   51-51 

Genus  Oiivtolita 51-57 

characters  of  the  genus  and  species 54,  55 

analysis  of  the  species 55 

descriptions  of  the  species 55-57 

Geinis  Blki'tina 57-(il 

characters  of  the  genus  and  species 57,  58 

analvsis  (d'  the  a]iecics 58 

<l('Scriptions  of  the  species .)8-61 

Genus  Tktanolita .  ('.1-65 

cliaracters  of  the  geinis  and  si)ccies Gl,  62 

analysis  of  tln^  species 62 

dc8crii>tinus  of  the  sjiecies 63-65 

Genus  Kkm a 6^-76 

characters  and  scheme  of  division 65-68 

analysis  of  the  si)ecies 68 

descriptions  of  the  species 68-76 

Genus  Hyi'kmi.a 76-78 

characters  of  the  genus 76,  77 

description  of  the  species 77,  78 


^^^0 


VI 


CONTENTS. 


Page. 

Genus  Hktkrooramma 78-80 

characters  of  tho  j^enus 78,  79 

description  of  the  specioa 79,80 

Genus  Gahkhasa 80-82 

characters  of  tho  ^oniis 80, 81 

description  of  the  species 81, 82 

Genus  1  )krckt18 82-84 

characters  of  the  genus 82,83 

descriptions  of  the  species 83, 84 

Genus  1'altiiis 84-88 

characters  of  the  genus  and  species 84-86 

descriptions  of  the  species 86-88 

OenusCAPis 88,89 

charai;ters  of  the  genus 88 

description  of  the  species 88, 89 

Genus  Saua 89-91 

chanicters  of  tlio  genus 89,  90 

analysis  of  the  species 90 

descriptions  of  the  species 90,  91 

Genus  HoMoi.ocn a 91-109 

characters  and  scheme  of  division 91-94 

analysis  of  the  species 94, 95 

.lescriptiou  of  tho  species 95-109 

Genus  Lomanai.tks 109, 110 

characters  of  the  genus 109 

description  of  the  si»ecie8 109, 110 

Genus  Platiiypkna 110-112 

ciiaracters  of  the  genus 110,  111 

descriptions  of  the  species 111-112 

Genus  Hypexa 112-118 

characters  and  scheme  of  division 112-114 

analysis  of  the  species 114 

descriptions  of  the  species 114-118 

Sjnonymical  list  of  genera  and  species , 119, 120 

Explanation  of  plates 121-126 

General  Index , 127-129 


78-80 
78,79 
79,80 
80-82 
80,81 
81,8a 
82-81 
82,  h;{ 
8:5, 84 
84-88 
84-86 
86-88 
88, 89 
88 
88.89 
89-91 
89,90 
90 
90,91 
91-109 
91-94 
94,95 
95-109 
109, 110 
109 
109, 110 
110-112 
110,  111 
111-112 
112-118 
112-114 
114 
114-118 
119, 120 
121-126 
127-129 


CUNTRIHIITIONS  TOW.VKI)  A  MONOIiKAl'll  OV  TIIH  INSKCTS  i)V  THE  LliriDOl'. 
TKKdIilS  l''AMII;Y  NOOTUID.K  Ob'  liOliHAL  NORTH  AMKRICA. 

A  IIKVISION  OV  THK  DKLTOll)  MOTliS. 


H.v  .loiiN  IV  Smith,  .Sc.  I).. 
I'roJ'exHor  iif  Kniomoloijii  in  Ittilijcru  I'ltUfij*', 


HiuU'r  the  }<<'ii('iiil  tonii  "  Deltoids''  there  iue  iisuiilly  grouped  in 
livsts,  ciiialoju'iies,  iiiid  coMectioiis  the  moths  of  ii  series  of  species  and 
geiieni  wliich  have  u  soinewliat  <listiuetive  appearance  and  habitus, 
Iml  Ibr  which  we  have  as  yet  no  exelnsive  ciiaraeters. 

This  series  luis  been  eh'vated  to  family  rank,  lias  been  associated  with 
the  I'yraiids,  :ind  has  been  most  recently  recognized  as  indistin<;uish- 
able  in  striietnral  characters  from  the  >  octiiiche.  It  is  possible  that  sub- 
family rank  at  least  should  be  accorded  the  series  as  liore  restricted; 
but  this  is  not  projiosed  at  i»resent,  since  within  the  limits  of  the 
series  there  are  two  if  not  three  very  distinct  types  or  tribes,  of  which 
JIcli((,JIermini<(,  ami  /li/pviKi  are,  i-espe(;tiv(ly,  typical. 

In  a  j;(!neral  way  the  species  are  charai'teiized  by  unusually  lonjy 
jmjjH,  which  are  either  slender,  closely  scaled  andcurved  upward  and 
backward,  sickle  like,  often  far  exceeding  the  head,  or  they  are  directed 
forward  ol)li(iii(dy  or  strai,yht,  clothed  with  upright  s(;a!es,  the  se(!Oiid 
joint  longest,  the  third  always  set  into  the  second  so  as  to  point  ui)ward. 
In  the  latter  case  tin;  palpi  with  the  pointed  frontal  tuft  form  a  beak  or 
snout  snnilar  to  that  in  the  Crambida-  among  the  Pyralids.  These 
elongated  palpi  are  not  peculiar  to  this  family  among  the  Noctuids; 
but  there  are  very  tew  genera  so  constructed  in  other  series,  and  these 
may  be,  in  most  cases,  ditterentiated  without  trouble.  Among  the 
speities  in  winch  the  palpi  form  a  snout,  being  obliciue  or  straight,  with 
elongated  sec(Mul  Joint,  none  are  Deltoids  that  have  tlu^  terminal  joint 
drooping  or  set  in  at  a  downward  angle  with  the  second  joint.  Nor  do 
I  include  any  species  in  which  the  se(!ond  joint  is  closely  scaled  above, 
the  long  vestiture  directed  downward,  so  that  the  apparent  enlarge- 
ment of  the  joint  is  formed  by  scales  directed  and  extending  below  the 
joint.  This  at  first  se<'ms  ai  slight  character;  but  it  will  assume  impor- 
tance when  the  character  of  the  palpi  is  closely  studied,  and  when  we 
consider  that  it  is  really  reversing  the  position  of  a  joint.     Of  the  forms 


;-8(;l>_Xo.  48 1 


UUI.LI.riN     iH,   IINITKD    STATK8    NATIONAL    MUSKUM. 


«:» 


in  wliicli  till*  palpi  iiiv  mIoihIci,  cnrviiip' iii)\viii(l  iuid  c.xcet'dinjf  flic  lirad, 
iKiiic  ait'.  Deltoids  in  wliicli  the  two  pairs  of  wiii^s  are  similar  in  si/o 
anil  niacuiation  or  liavc  a  ^^roinctrirorni  oriianicntaiion  exteiidiiij;'  on 
botli  win^s.  I'lirtiier,  with  the  e\eei»tion  of  llvliu,  all  Deltoids  with 
l»alpi  of  the  (rhaiactcr  last  desi-ribed  have  the  lore  leys  of  the  inalc! 
niodilied,  ilothed  with  tufts  or  pencils  of  hair,  and  always  with  aborted 
tibia. 

With  tli»!  exceptions  stated,  the  series  does  not  dill'cr  from  other 
Noctiiids  in  any  essential  features;  yet  it  will  be  worth  wlule  to 
mention  some  of  the  ot  her  main  charactcMs.  TIm'  hitiuJ  is  always  small, 
yet  never  retracted,  and  ottcii  iiriMiiineiit.  In  iKtiie  of  our  species  is 
the  ton^U'  al)orte(l  or  even  weak,  so  all  of  them  are  capable  of  feediii};". 
The  eyt's  are  usually  prominent,  semifjlobose,  thouf^h  never  \-ery  lai};*'; 
always  naked,  thoiij;h  in  some  j;enera — oaly  one  in  our  fauna — iVinged 
with  hairy  lashes,  Oceljj  are  present  in  all  our  forms,  situated  clos«',  to 
the  c(;mi)ound  eye, but  distinctly  variable  in  their  positimi  relative!  to 
the  posterioi"  nnuj-in  of  the  eye.  In  the  llcrminiini  they  are  almost  as 
far  back  as  possible,  while  in  IIyi»eiiiiii  they  are  ab..ost  in  the  middle 
of  the  crown.  Tiic|)oint  of  insertion  of  the  aiitenme  varies  somewhat; 
but  as  in  the  inatler  of  the  ocelli  our  material  is  not  yet  sullicient  to 
enable  us  to  niak«>!  studies  <ni  all  the  points  involved  or  to  generalize. 
The  structure  of  the  anteiiine  is  exceed inju'ly  interestiufi'  from  the 
character  of  tlu^  sexual  modilications;  but  this  subject  will  be  taken 
up  again  fiirtlKM'  on,  and  I  need  only  say  that  they  vary  from  simple  to 
lengthily  i)i'ctinatcd. 

The  <'liara(;ter  of  the  palpi  iias  Ix.'en  alreadj'  referred  to. 

The  body  is  sliglit  in  most  instances,  never  very  robust.  The  thorax 
is  closely  scaled  in  general,  tufted  only  in  the  llypenini,  where  a  robust 
structure  is  characteristic  of  tlu^  males.  The  abdomen  is  usually 
(•ylindric,  without  sexual  ditlerences,  but  in  the  female  terminating  in 
an  abrujit  point,  while  in  the  male  it  is  truncated.  While;  it  is  never 
short,  the  al)domeii  rurely  exceeds  the  anal  angle  <>f  the  secondaries 
nuu'c  than  a  little,  and  it  as  >are!\  fails  to  reach  that  p;r)int.  Tuttings 
are  only  found  in  the  Ilyp<'nini,  where,  in  most  of  the  ajjecies,  tlieic^  is 
a  series  of  little  round,  truncirted,  dorsal  tults,  composed  of  upright 
s(!ales  and  very  easily  ruhbed  off 

The  legs  ar(>  iisuall>  long  and  slender,  though  hardly  weak.  The 
thoracic  structure  tends  to  an  elongation  of  the  |»arts,  the  coxa*  being 
in  all  eases  well  developed.  The  fore  legs  are  short,  the  tibia'  usually 
short  in  comparison  with  the  fcmni  ;  but  in  the  males  of  the  !'er- 
miiiiini  the  modifications  are  \ery  curious  and  will  be  again  referred 
to.  The  middle  and  posterior  legs  are  longer,  more  as  in  the  Pyralids, 
with  extremely  long  and  une(|ual  til>ial  spurs,  terminal  on  the  uk  jii, 
terminal  and  at  ai)ical  third  on  tlic  ])osterior  pair.  The  legs  are  closely 
scaled  as  a  rule,  but  in  some  of  the  male  Ilyiicnini  they,  as  well  as  the 
entire  thoracic  ])arts,  become  hairy  or  even  woolly. 


A    UKVISIUN    Ol'    THIO    UKl/IOIU    MlJlUS — 8MITII. 


on 


V 


i 


Tlic  \viii;iH  arc  usually  larjo:*',  but  rarely  frail,  tin-  two  paii's  propor- 
tiuiiatc,  or  tlir  posterior  enl.U'nin;;'  at  tlie  «'\|iense  of  tlu'  aiitericu',  as  in 
I  lie  typical  Ujijhiki.  VVc  liiive  a  predoniiiiaiM-e  ol"  pale  yellowisli  oi- 
lut<>ou8  tints  in  the  llerniiniini,  and  of  daiU  or  dull  brown  hues,  sonu;- 
tiuu^s  with  <'ontrastin};  whites,  and  with  a  tencb'ne.N  to  elevateil  black 
.scales  in  the  llypeidni.  Thooriuinientation  is  usually  simple,  frequently 
eoiisistiuy' only  of  single  transxerse  lines  o\er  a  uniform  bast^;  but  in 
sonu^sjM'cies  variation  appaiently  runs  riot.  The  secondaries  i>ie  always 
siniply  marked,  usually  nearly  immaculate  or  with  a  va;^U(;  uieiliau  and 
extra  median  line,  luiver  with  any  strikiuj;  ornainenta; ion  or  with  a 
(;outinuati(Ui  of  that  of  the  primaries.  The  venation  is  normal  iii  most 
instanees;  that  is  to  say,  iu  the  primaries  the  ueeessory  eell  is  jjvescMit, 
veiu  /)  is  part  of  tho  series  from  the  end  of  tlu'  median  \eiii,  ami  tluu'e 
is  a  siuf^h  internal  vein,  which  is  not,  <M' but  fe(Ody.  tbrked  at  base — a 
character  of  uo  real  value  todoliiu'a  Noctuid.  In  the  secondaiies,  vein 
5  is  asstrougor  scarcely  w«'aker  than  the  others,  and  joins  tin-  median 
vein  by  an  abrupt  eurvo  or  bend  a  little  befoj'e  the  forkiufj:  of  I5  aiul  t. 

No  distinct  cross  vein  is  present  iu  any  si)ecies  examined  by  me,  and 
in  all  cases  the  oii;;in  of  ."iis  from  the  median  without  a  break  in  iho  con- 
tin  uauce  of  the  vein.  In  the  llerniiniini  thereisa  stronj;  tend<>ncy  ton  loss 
of  the  accessory  cell,  and  this  increases  iu  the  aberrant  lorms,  in  which 
the  wiii<>s  are  augulated,  which  lack  it  as  a  rule.  This  is  accomi>anied 
by  a  variation. iu  the  arrauj-emeut  of  tbe  subcostal  series  of  veins,  and 
we  m;iy  have (»,  a  stalk  beaiinj;  7,  S,  and  !),  and  10  from  laactically  the 
same  jtoiut  at  the  end  of  the  subcostal,  or  10  may  iirist;  from  the  stalk 
bearinji'  7  toO,  while  in  rare  instances  10  arises  more  basally  .md  from  the 
subcostal  before  the  end.  These  variations  are  usually  of  jicneric  value; 
but  they  must  be  cautiously  used,  for  o(H;asioua I ly  the  accessory  cell  may 
be  i)reseiit  or  absent  within  the  limits  of  the  same  yeiius. 

1  have  excluded  from  this  siuies  the  jienera  I'scinlorffi/ia  and  liinild. 
rsru(lor{/i/i((,  iu  my  oi)iniou,  has  no  real  l)<'ltoid  allinities.  Tlu^  snout- 
like palpi  and  the  pectinated  male  antenna'  arc  the  only  features  that 
can  be  relied  upon;  but  those  same  characters  occur  iu  the  little  aber- 
rant series  of  which  Pliiprosojuis  and  Eiwahiptcra  form  a  part,  and  the 
anttmnaj  of  the  former  and  ])ali)i  of  the  latter  mark  the  sum  of  the 
Deltoid  characters.  The  palpi  have  the  last  Joint  drooi)in.<i,  and  the 
enlarj>('ment  of  tlu^  secoml  joint  is  by  downward  vestitiire,  exactly  as 
.in  others  of  the  series  referred  to. 

Jiivula  is  more  dillicult  to  deal  with,  Ix'cause  of  its  venation,  't 
lacks  the  accessory  cell,  and  vein  10  of  the  inimaries  arises  from  the 
subcostal  precisely  as  in  some  of  the  true  J)eltoid  yenera;  but  on  tlu^ 
other  hand  vein  o  of  the  secondaries  is  decidedly  weak  and  is  lost 
basally  in  the  texture  of  the  winj;'  or  arises  from  a  cross  vein  so  weak 
that  no  trace  of  it  remains  in  the  mounted  winj;-,  and  that  (juite  near 
to  the  middle  of  the  (;ell,  though  nearer  to  I  than  to  G,  thus  dilferinj;- 
from  all  the  others  referred  to  this  group,  and  agreeinj;-  with  the  char- 


4  Bri.LETIN    IS,  UNITKl)    STA'I  KS    NATIONAL    MUSEUM. 

acters  of  ilieTrirulii'.  The  palpi  also  agree  with  the  series  of  wbieh 
y'  iiioUta,  Cilia,  and  Eiiadi/ptcra  form  a  part,  and  tiiere  its  relatives  must 
l»e  sought.  Finally  the  early  stages  are  aberrant.  The  larva,  a«!cord- 
inj',  to  (Inence,  lives  on  low  i)lauts  in  moist  localities;  has  sixteen  feet, 
i(.!sen:bles  those  of  I'tcrophora  in  appearance,  has  a  large,  flattened 
hear.,  is  sluggish  and  when  transforming  into  a  pupa  fastens  itself  by 
the  ereniaster  as  well  as  a  girth  in  a  horizontal  position.  This  pupa 
has  an  obtuse  head  <!ase  with  two  distant  tub-rcles,  above  each  of 
which  are  two  diverging  bristles.  None  of  these  characteristics  are 
Deltoid,  and  for  the  reasons  given  I  lo  not  include  the  genus  here.  It 
nniy  be  stated  that  Llerrich-lSchaeller  classed  it  with  his  Nycteolida', 
which  may  not  have  been  such  a  huge  blunder  as  has  been  thought. 

1  have  mentioned  two  tribes  mi  the  previous  pages,  the  Hermiuiini 
iiud  the  llypcnini:  but  there  is  r<  ally  another  which  contains  in  our 
fauna  a  single  genus  only — the  lleliini,  all  referable  to  the  genus 
Fjpizcv.rh. 

The  licliini  are  characterized  by  smoothly  clothed  palpi,  curved 
upward  close  to  the  front,  reaching  to  or  consideral)ly  exceeding  the 
vertex.  The  antenna'  in  the  niale  are  laterally  ciliated,  without  special 
modification  or  nodosity,  and  the  fore  legs  In  the  male  are  peculiar  in 
that  the  femur  is  unusrially  l(»ng,  dilated  at  base,  and  excavated  infe- 
ri<n'ly  toward  the  apex  to-receive  the  tibia,  wliich  is  short  and  witiiout 
si)eciivl  modilication.  The  wings  a)e  of  good  size,  sub[)arallel  or  with 
a  slightly  oblicpie  outer  margin,  so  rhat  the  costal  andinner  nuiigin  are 
of  nearly  ecpial  lengtii.  I  have  not  been  able  to  make  out  any  special- 
ized sensory  structures  in  the  lenu)ral  excavation.  This  tribe  is  the 
least  s])ecializcd  of  the  Deltoid  group. 

The  llerminiini  olfer  more  (kM^ided  characters,  chieHy  in  the  male,  in 
|)alpi,  antenna',  feet,  and  wing  form.  The  palpi  may  be  slender, 
smoothly  scaled  recurved;  or  they  may  be  com[)ressed,  with  ui)right 
vestitnre,  and  then  either  obli(iue  or  straight,  tlie  middle  joint  always 
longest,  and  the  upright  vestituie  either  nuissed  toward  the  tij)  or  even 
throughout.  In  the  male  the  ])alpi  are  fre(juently  shorter,  and  are 
oblii|Ue  when  the.N-  are  straight  in  the  female.  In  one  case  only,  I'altliiH, 
we  hav  .it  the  tip  of  the  third  Joiu>  a  membraneous  (vxtension,  forming 
a.cover  in  which  lies  a  pencil  of  long,  yellow,  Iniir-like  scales,  which  is 
capable  of  expansion  at  tlu^  will  of  the  insect.  A  more  i)articular 
descrijition  of  these  pencils  is  given  later  on,  but  they  are  in  all  essen- 
ti:(l  features  like  those  on  the  foi'c  legs  of  other  genera,  and  there  are 
the  same  l.a'ge  sensory  pits  that  are  found  elsewhere  in  association 
with  these  tuttings  or  pencils. 

The  antenna'  in  the  lleiininii'ii  are  always  distinguished  in  some 
way  in  the  male.  In  the  tribe  as  a  whole  the  front  of  the  head  is 
quite  wide,  and  the  antennal  foveas  are  sitiuvted  well  nj)  on  the  vertex, 
close  to  the  compound  eye,  thus  well  separated  at  base.  In  iheir 
simplest  structure  they  have  the Joi'its  with  moderate  latesal  bristles, 


/:s^' 


A    REVISION   OF    THK    DEI/rOIl)    MOTHS S?,IIT1I. 


5 


but  iKM^ompaniod  silso  in  every  cnse  witli  little  ttilts  of  cilia'  aiisinj;' 
li'oiii  sniai'  tubercles  set  inlo  scusory  pits  of  the  most  diverse  cliaraeter 
and  varyiii,i;  f^ieatly  in  nui!il)er.  Often  tlie  Joints  are  clothed  with 
seales  w  Inch  are  somewhat  elevated  at  tij*  and  so  arranged  as  to  nii.ke 
them  seem  serrated  oi'  marked  at  the  edges,  an  appearance  not  borne 
out  by  the  Joints  themselves  when  denuded.  The  bristles  become 
gra(biall>  longer,  and  are  then  reinforced  by  small  pi-ocesses  or  teeth 
which  are  pitted  and  give  rise  to  sensory  hairs.  Usually  there  are 
tulsercles  also,  oi'  little  |)egs  set  in  large  pits,  and  from  these  arise  single: 
hairs  or  litthi  tufts.  The  bristles  gradually  change  lo  i)ectinations, 
long  or  short,  never  more  than  one  to  each  side  of  each  joint,  and  these 
in  turn  are  furnished  with  lateral  ciliations,  regular  or  irregular.  Some- 
times there  is  a  stout  bristle  inserted  near  the  tip  of  the  pectination, 
in  a  deep  i)it,  a  b^tle  protuberance  on  the  biiuufn  giving  additional 
su])port.  There  is  also  considerable  variation  in  the  length  of  the 
pectinations,  and  as  they  increase  in  length  they  usually  Deeome  less 
robusi.  Where  they  are  short  and  stout  additional  tubercles  or  pits 
with  tufts  or  single  hairs  become  more  numerous. 

In  addition  to  these  normal  structures  of  the  antenna' there  are  others 
that  are  decidedly  unusual,  always  ]»hiced  at  about  one-third  from  the 
base.  This  abnormity  may  consist  of  a  mere  thiekening  of  the  scaly 
(tlothing.  the  individual  scales  becoming  larger  in  every  direction,  and 
they  may  or  may  not  «'ov(!r  a  slightly  ei'.larged  joint  or  two.  Sometimes 
beiu'ath  the  tuft  of  scales  one,  two,  or  three  joints  will  have,  in  lieu  of 
'ordiiuivy  pectinations,  stout,  short,  pointed,  straight  or  curved,  brown, 
corneous  processes,  two  of  which  are  usually  i'ontiguous  at  tip,  so  as  to 
seem  under  a  low  ])owcr  hand  lens  the  point  of  a  single  ])rocess.  Where 
such  processes  oc<;ur  tlie  Joiins  are  often  considerably  broader  ai.d 
sliorter  and  sometimes  have  'iiimerous  pittings  with  or  witlnuit  bristles, 
hairs,  or  pegs.  In  sixth  cases,  also,  the  i>ectinations  <u'  lateral  [processes 
of  the  antenna'  are  wanting,  or  at  least  much  abbreviated,  on  the  inner 
side  I'roiii  the  base  to  this  specialization.  These  processes  attain  their 
maxiinr.ii!  d«'velo]>nient  in  Zancli)(iniiflt((,  and  arc  always  associated  with 
a  pectinat«'d  or  strongly  bristled  antenna,  and  with  strongly  tufted 
anterior  legs.  Associated  al.so  with  the  modilicationsof  the  Joints  there 
is  a  greater  or  less  mai'ked  change  in  the  continuity  of  the  antenna,  as 
a  whole,  sometimes  amounting  to  a  distinct  curve. 

In  Ti'laiioliiit  we  have  a  distinct  (l(^partui(^  in  a  different  direction 
in  the  form  of  a  |>ointe<l  tuft  of  hair  on  the  inner  side,  covering  no 
special  modilication  save  two  slightly  enlarged  joints.  In  /tV/z/a  the 
moditieation  has  assumed  more  detinire  form,  ami  the  tuft  becitmes  quite 
prominent.  NN'e  notice  also  that  tlu^  antenine  are  more  slender  beyond 
the  tuft,  that  there  is  a  tendency  to  curl,  and  that  there  seems  to  have 
been  (pule  a  detinite  change  in  structure  at  the  i>oii't  covered  by  the 
tuft.  After  ])roper  ])reparation  i'or  study  under  the  niicrosco])c  this  is 
seen  to  be  the  fact,  one  of  the  Joints  being  much  elongated  and  also 


G 


BULi.ETIN    48,   UNl'I'KD    STATES    NA'I'IONAL    Ml'SKrM. 


I 


iiincli  curved,  fonniiif;  a  very  distiiu't  '' scoop  out/'  Opposed  to  tliis  is 
a  movable  tiii«iei'-like  process,  with  hooked  bristles  at  its  tip,  supple- 
iiu'iited  by  two  or  even  three  other  less  specialized  processes. 

What  is  the  i)nrpose  ot  all  these  specializations,  and  why  have  they 
been  «1eveloped? 

To  the  latter  part  of  the  question  T  have  no  answer,  save  as  the  struc- 
tures are  sensory  in  character,  it  is  usually  conceded  that  the  olfac- 
tory organs  and  the  sense  ol"  smell  are  situated  in  the  antenna',  and 
that  the  develoi)nient  of  pectinations  and  sensory  hairs  is  necessary  to 
enable  the  male  to  find  the  feujale  more  readily.  This  explanation  may 
be  considered  as  correct,  but  it  gives  uo  leason  why  so  simple  a  struc- 
tiu'e  answers  the  purpose  in  the  one  ease  and  why  so  extremely  com- 
plicated an  ajjparatus  should  be  re(piired  in  the  other.  The  sense  of 
touch  is  als(»  jdaced  in  the  anteniiix;  by  students,  and  also  without 
doubt,  so  tar  as  1  am  concerned,  <'orreetly.  I  would,  however,  in  cases 
ot  this  ehara(;ter  consider  it  rather  a  sense  of  a])preciation  than  a  sense 
of  touch,  and  possibly  this  sense  of  appreciation  may  cover  those  of 
touch  and  heai'ing,  being  reduced  to  an  appreciation  of  certain  disturb- 
ances in  the  atmosphere  acting  upon  the  extremely  sensitive  hair,  which 
coinmunicate,  directly  or  indirectly,  with  nerve  tibers.  That  they  are 
not  required  by  the  species  to  maintain  its  existence  is  i^roved,  of  course, 
by  the  fact  that  the  female  has  no  such  sensitive  or  sensory  structures, 
and  hence  we  assume  that  tlie^  are  of  use  in  recognizing  the  presence 
ol  that  sex  by  the  male. 

'file  ot'iier  ju'ocesses  stand  on  adifferent  footing.  They  are  mechnnical, 
not  senscuy  in  their  chaiactei',  and  we  assume  that  they  have  a  sexual 
function  i'ov  the  reason  above  given — they  are  found  iuoue  sex  ouly.  I 
have.uever  myself  seen  any  sjiecies  of  this  series  in  copulation,  nor 
have  I  found  any  who  have  seen  it.  So  far  as  I  am awaie,  no imblication 
to  which  I  have  had  access  has  desci'ibed  the  process;  hence  the  subject 
is  one  for  ,"oiiJe(-tuie.  .hidging  from  what  we  know  of  certain  species  of 
(.'oleoptera  these  mechanical  modilicatitms  are clasiiing  organs,  enabliiig 
the  nude  to  encircle  and  tightly  hold  the  female  antenna'  during  copu- 
lation. Wliy  the  necessity  for  such  organs  exists  in  the  present  series 
still  remains  a  question. 

The  most  interesting  modifications,  however,  are  those  of  the  male 
forelegs,  and  in  this  entire  tribe  not  a  single  species  has  a  quite  noimal 
strn<!ture  of  this  member.  Irrespective  of  all  tuftings,  the  ])rop()rtion 
ot  the  parts  becomes  changed. 

The  coxa,  usually  not  mobile  but  rigidly  api)lied  to  the  thoracic  mass, 
becomes  movable,  loses  rigi<lity,  and  gradually  becomes  elongated  and 
attennati'd,  forming  a  functional  i)art  of  the  leg. 

Tiie  trochanter,  which  is  inconspicuous  normally,  tends  to  increase  in 
length  until  it  exceeds  the  femur  in  size  in  every  dimension,  giving  us 
a  very  distiiie'.  .uldirional  member  in  the  leg  structure.  No  spe<'iali/,a- 
tions  of  a  sensory  <'haracter  are  develojjed  on  this  segment  so  far  as 
our  .species  are  concerned. 


A    RF'.VISION    OF    THK    DKLTOII)    MOTHS SMITH 


and 


The  leimir  tends  ro  an  increase  of  si/e  and  weiinlir  in  oih-  <»ir<ni>  of 
sjx'cics  aii«l  ill  the  opposite  diiectioii  in  others,  its  d(><ie,is(^  iisuallv 
coirespondiii;^'  to  an  increased  length  ot  trochanter.  Sometinies  there 
is  an  enlaifieinent  toward  the  apex,  and  quite  usually  the  member  is  i 
mere  shell,  adapted  to  aeiiommodate  and  conceal  a  p«'nci!  oi  liairora 
mass  of  siiecialized  scales.  Occasionally  there  will  be  Ibund  on  the 
uiHler  side  an  area  ot  specialized  pits  somewhat  'protuberant  or  raised 
al)ovc  the  surronmliiij:'  level,  torininj;'.  apparently,  an  extremely  seusi 
tive  surface. 

The  tibial  modifications  are  yet  more  ra<hc,al.  The  member  itself  is 
shoi'teued,  sometimes  .so  much  as  to  make  if  a  mere  rudiment;  but  it 
always  is  of  sullicM'iit  size  to  bear  a  relatively  large  ei)ii)hy.sis,  and  an 
altogv'thcr  dispr(>portioiiatc  ai»pendage  which  seems  a  continuation  of 
the  outer  wall  and  extends  to  the  tip  ot  thi'  first  tarsal  loiiit  if  it  does 
not  include  the  entire  tarsus.  This  ai»iKMidage  is  sometimes  (]iiite 
slender,  sometimes  enormously  expanded  and  shield  like,  and  usually 
covers  a  mass  of  specialized  scales  ami,  \  ery  trecpiently  also,  tufts  or 
pencils  of  hair.  It  is  often  clotluMl  with  stiff  hair  outwardly,  and  when 
cut  or  crushed  is  found  to  liave  the  inner  surface  a  mass  of  specialized 
sensory  i)its.  The  epiphysis  is  always  ))resent  and  relarively  large. 
In  many  cases  the  covering  is  furnished  at  tlie  edges  with  curved  book 
lets,  which  are  closely  set  and  fit  into  correspoiuling  fovea' on  the  tibia. 

TIm^  tarsi  are  \  ariously  modified.     In  all  cases  the  fnst  joint  is  enor 
mously  elongared,  often  cfpialing  the  femur,  and  it  is  also  much  thick 
ened.     This  thickening  is  more  api)ar<Mit  than  real,  however,  for  in 
most  cases  the  outer  edge  of  the  joint  is  so  deeply  ex(!avated  that  it  is 
a   mere  shell.     Occasionally  there  will  be  found  near  the  tip  a  ladle 
sli!ip<Ml  appendage,  attached  by  the  handle,  tin'  bowl  directed  toward 
base,  and  the  edges  of  this  bowl   furnished  with  hooklets.     This  seems 
to  be  applied  to  some?  iioiiit  in  the  tibial  process;  but  exactly  what  pur- 
pose it  serves  1  have  not  heeii  able  to  ascertain.     The  other  tarsal  Joints 
are  normal  as  a  rule;  but  not   infr<'(jiiently  they  are  much  shortened 
and  partially  aborted,  tho  terminal  article  sometimes  l)ulbous  and  with 
hugely  dex'eloped  claws.     So  greatly  elongated  are  the  legs  as  a  whole 
thai  when  fumed  back  they  extend  far  behind  tlu'  anal  angle  of  the 
secondaries  and  almost  as  far  as  the  tips  of  the  posterior  legs. 

Specialized  aiipendages  in  the  tbriii  of  scales  and  tufts  or  ])encils  of 
hair  ha\e  been  mentioned  and  merit  close  study.  The  coxa  is  usually 
hollowed  out  on  its  anterior  face,  and  in  the  cavity  are  inserted  long, 
yellow  or  lihickish  hair  like  scales,  those  near  the  bas«'  longest,  gradu- 
ally decreasing  in  length,  so  the  entire  mass  may  lie  fully  extendwl 
when  at  .rest.  When  the  leg  is  extended  this  mass  of  hair  maybe 
ex))anded  s(unewhat  fan  like.  When  at  rest  the  femur  covers  this  coxal 
excavation  and  both  conceals  and  juotccts  the  tufting,  now  neatly 
tbhb'd  away.  At  first  sight  this  and  similar  pencils  appear  to  consist 
of  tine  silky  hair;  but  under  tln^  microscope  it  is  found  that  there  arc 


8 


BULLETIN    18,   UNITED    STATES    NATIONAL    MUSEUM. 


i 


really  greatly  cloiigaU'd  scaios,  the  shank  beiiij^-  a  very  attenuated 
cylinder,  while  the  tip  is  sometimes  dilated,  <;lub  like,  and  sometimes 
fan-like,  but  never  very  much  enlarged.  The  shorter  they  become  the 
more  distinct  is  the  scaly  character  of  these  ])eiicils;  but  for  conven- 
ience and  asexjuessiveof  their  actual  appearance  they  will  be  referred 
to  as  tufts  or  pencils  of  hair. 

The  femur  in  lliisti-ibe  is  (piite  usually  su])pli<'d  with  a  i)(!ncil  of  long 
hair,  attached  to  the  ui)])er  side  near  the  tip  and  lying  in  a  groove 
which  iruludes  nearly  all  there  is  of  the  femur.  In  length  this  jk'h- 
cil  e(iuals  the  trochanter  and  femur  combined,  and  when  at  rest  it 
folds  back,  the  femur  is  applied  to  the  coxa,  ami  the  groovi^  is  tiiua 
closed.  r>y  this  application  of  the  femoral  groove  to  the  groove  in  the 
coxa  the  pencils  of  hair  on  these  parts  lie  together  in  what  is  then  a 
closed  cylinder  or  elongated  <'apsule.  When  the  leg  is  extended  the 
femoral  pencil  may  be  erected  and  exi)anded  fan  like,  forming  in  nuiny 
cases  more  than  three-fourths  of  a  <!omplete  disk.  The  tibial  i)rocess 
quite  fre<[uently  covers  another  ])encil  of  similar  hair  which,  while  it 
may  be  dilated,  sjtreads  out  loosely  in  all  directions  and  not  fan  like. 
Quite  usually,  when  no  distinct  ])encil  of  hair  is  present,  the  process 
covers  a  loose  mass  of  si)ecialized  shorter  scales,  while  huge  scales 
fringe  the  edges  of  the  process.  •  The  latter  folds  around  the  elongated 
first  tarsal  joint,  which  is  (tt'ten  grooved  to  conceaj  or  ])rotect  the  t)bial 
tuft.     No  tults  of  hair  or  scales  are  on  the  tarsi. 

A  s))eciinen  with  its  fore  legs  extended  and  all  the  i)eiicils  of  hair 
expanded  is  it  <-urious  and  interesting  sight.  Zdnclot/natha  Juriguia 
and  ChytoHta  morhidalis,  both  common  species,  have  these  tuftings  well 
develo]»ed. 

What  purpose  do  these  structures  serve?  That  they  nre  sensory  is 
reascmably  certain,  IVom  the  facts  that  they  are  connected  with  si)ecial- 
ized  pittings  and  are  so  <;arefully  provided  with  protective  coverings 
wdien  not  in  actual  use.  In  my  earlier  writings  I  called  them  "scent 
organs,"  following  those  German  authors  who  consider  them  "J)uft 
apparate."  The  suggestion  is,  that  certain  glands  conne<'ted  witli 
these  pencils  secrete  some  substance  which  is  odorous  and  which 
through  the  ])ittings  or  ])ores  of  the  integument  bring  their  secretions 
into  contact  with  the  pencils  of  hair,  by  means  of  which  the  0(h)r  is 
gradually  dilfused.  That  this  odor  is  connected  with  the  sexual  func- 
tion is  universally  assumed;  but  just  how,  is  not  so  clear.  It  can  not 
be  that  the  od(U'  is  meant  to  attract  the  lemale,  for  the  attraction  is  the 
other  way,  and  the  male  seeks  out  the  opjtosile  sex.  If  the  tufts  came 
into  play  ill  courting  it  would  seem  as  though  there  should  be  some 
corres])onding  organ  for  th<^  appreciations  of  the  odors  in  the  feimUe; 
but  I  have  entirely  failed  to  find  any  such.  In  actual  coi>ulation  there 
seems  no  function  that  could  be  filled  by  these  structures.  They  must 
be,  for  the  present,  classed  among  those  appendages  with  the  use  of 
Avhich  we   are  not   fully  ac(juainted.     It  is  indeed  remarkable  that 


i 

till 

1 

l)e 

cia 

mo 

r 

tw 

1 

an 
ve 

Stl 

up 

th 

A 

ag 

A    KEVISION    OF    THE    JtELTOlD    MOTHS SMITH. 


tliioii,uli()nt  tliis  tribe  inilcmial  dcvt'lopiiuMits  himI  \vix  stnictnres  sliould 
bo  c.losi'l.N  cont  ..ited;  tbi- witli  the  most  Mbcially  lutU'd  k'jus  are  asso- 
ciatt'd  tlie  antenna'  with  tlie  longest  pectinations  or  bristles  and  the 
most  highly  <leve.loi»ed  appree.iative  or<;ans. 

llie  jicnera  in  this  tribe  are  quite  numerous.  an<l  divide  readily  into 
two  series,  in  one  of  which  the  palpi  are  slender,  closely  scaled,  upcurved, 
and  oltcn  recurved,  tiu'  se(;ond  joint  never  strai.u'lit  oi-  with  iiprij;ht 
vestitnre  forminfi'  a  blade  like  strnctnre.  In  the  otlier  the  paliii  aie 
straight  or  ()bli([ne,'nev«u'  re(!urved,  the  second  Joint  always  with 
nj)right scales,  foiining  a  com])resse<l  more  or  less  blade  like  structuie; 
the  latter  series  in  this  particular  agrees  with  JJi/i)ena,  while  the  former 
agrees  with  UvUa. 

Among  the  genera  with  slender  ])alpi  ZdHchHittnihu  and  llormisa  have 
at  the  basal  thud  of  the  male  antenna-  two  or  three  joints  furnished 
with  stout  corneous  processes  and  an  outer  thi(;keuing  of  scales.  Z(tn- 
clofpidfliu  has  the  male  antennae  with  long  lateral  bristles,  whih;  in 
Hoihiisa  there  are  long  pectiinitions.  These  genera  are  well  associated 
and  are  conveniently  placed  at  the  head  of  the  series.  In  both,  the 
tiiftings  of  the  fore  legs  oi  the  male  are  well  developed,  reaching  their 
extreme  in  some  species  ol'  Jl<irini.s<t. 

TrUinolitd  has  the  male  antenme  laterally  bristled, and  at  basal  third 
there  IS  a  pointed  tuft  of  hair,  very  similar  to  that  of  Rcnia,  but  it  does 
not  cover  any  sj)ecial  inoditicatiou  except  a  slightly  enlarged  loint  or 
two.  The  tuftiiigs  of  the  male  lore  legs  are  moderately  well  developed. 
This  genus,  containing  small  sjiecies,  shows  marked  relatioiishi[)  to 
liltptiiKi  and  h'eiii((,  and  its  natural  ])osition  is  between  these  genera, 
and  not  imiiHMliately  following  IIormifKt,  where  convenience  of  analysis 
has  placed  it. 

lllrpfina  has  the  antenme  laterally  bristled  in  the  male,  without  special 
modilication  of  any  kind  at  basal  third.  The  tutting  of  the  male 
tore  legs  is  mm  h  reduced.  (Unlike  all  tlu'  other  genera,  with  which  it 
is  associated  it  has  narrow,  elongate,  and  pointed  wings.  The  palpi 
are  transversely  tlattcMied,  but  are  curved  and  do  not  have  i)romineiit 
upright  scales,  it  forms  a  eoniie(;ting  link  to  the  second  series,  and  is 
allied  to  RrnUi. 

In  the  series  in  which  the  palpi  are  straight  or  oblicpie  and  blade-like, 
with  upright  scales,  some  difli'ieiices  in  venation  and  wing  form  occur. 

The  acc(\ssory  cell  is  present,  .lud  the  venation  is  (piite  normal  in 
VhUonutrtt,  Clii/tolita,  Ihjpenula^  and  IhrccliH.  It  is  absent  and  the  vena- 
tion is  abnormal  m  l\'eni<i,  Ilclcrofirammo,  (Inhi  rasa,  awii  I'<(Hhis. 

Philoiiu-irahiiH  lengthily  bipectinated  male  antenna',  without  special 
modification  or  nodosity  at  l»asal  third.  The  tiittings  on  the  fore  legs 
are  very  strongly  marked.  reseml)ling  Hontiisa  in  thesecharacters.  as  in 
the  antenna'.  Its  natural  position  is  immediately  after  y/o>>»/.sY/,  from 
which  it  ditfers  in  palpal  structure  as  well  as  in  the  lack  ot  special 
anteuual  inoditi<;atiou. 


10 


lU-l-I.KTIN    18.   UXITl-:i)    STATES    NATIONAL    MUSEUM. 


1 


ChjltolUa  liiis  tliu  mule  anteiiiiii'  biistlcMl,  and  lias  at  basal  third  a 
nodosity,  covciiiiin-  tliroo  eiilav^od.joiiirs,  which  aro  funiislK'd  with  cor- 
Tiie  innlc  fore  le^rs  are  prominently  tufted,  but  abor- 
so  far  as  in  the  preceding  genus,  which  it  follows 


neons  processes 
tion  is  not  carried 
naturally. 


lileptiiin  an<l  Trtanolifa  should  follow  the  preceding  in  a  natural 
arriuij'emcnt. 

IIijjHnuln  is  a  curiously  dark  form  which  at  lirst  sight  suggests  the 
tribe  Hypeniui,  but  has  the  wing  form   of  the  present  series,  and,  as 
Avell,  the  tufting  of  the  male  fore  legs,  which,  however,  is  not  prominent. 
The  nude  anteninc  are  laterally  bristled,  but  have  no  special  modifi 
cation.     In  a  natural  sequence  this  genus  should  come  after  Hcuui. 

Jh'i'cetis  is  a  genus  with  curious  little  species  in  which  the  male 
antennai  are  pectinated,  the  branches  jjropoitionately  very  stout,  the 
male  fore  legs  tufted,  and  the  primaries  broad,  trigonate,  the  outer 
margin  angulated  at  nnddle  and  excavated  below  the  apex.  It  slnuild 
be  associated  with  (inhi  )<ih<i  and  Pdlthis,  from  which  it  differs  by  the 
presence  of  the  aitcossory  cell. 

Kenid  ^s  a  genus  (composed  of  large  species  in  whi<'h  the  apices  of 
the  prinniries  are  usually  somewhav  marked.  The  lack  of  accessory  cell 
will  distinguish  it  at  once  from  all  the  other  genera  of  larger  insects  in 
which  the  wings  ar<'  not  angulated.  The  nnile  antenna'  are  peculiar  in 
the  i)resen(!(^  of  a  ])ointed  tult  of  hair  toward  the  mid<lle,  covering  a 
distinct  bcndor  curve,  and  beyond  which  the  stem  is  much  moi-e  slender 
and  inclined  to  cm  1.  They  arc  laterally  bristle<l,  and  the  stru«'ture  is 
nniipie,  The  tuf  tings  of  the  male  fore  legs  are  i)ractically  obsolete,  and 
the  anterior  tibial  process  is  much  reduced.  The  genus  should  follow 
BU'pt'.na,  and  should  be  in  turn  fidlowed  by  ni/pcniila,  tiioiigh  this 
ailbrds  strong  leanings  toward  the  /(Oiclofiiidtha  ty[)e. 

Jlctcyofp-timma  h.istlie  fore  wings  aiigulat(Ml,  the  male  antenu!;'  later- 
ally bristled.  Tiie  fore  legs  of  the  male  have  a  large  tibia!  process 
covering  a  mass  of  large  scales,  but  forming  no  distinct  tufts.  At  the 
baseof  the  long  lirst  tarsal  Joint  is  a  i)ecidiar  ladle-shaped  appendage, 
which  has  be(m  previously  mentioned.  The  genus  follows  naturally 
after  lli/prnula,  and  is  easy  of  recognition  by  the  characters  given. 

(idhcrasd  resembles  JlcfnofiramDiti  in  the  femah'  and  in  all  the  fea- 
tures of  the  male,  save  that  the  i)riniaries  in  that  sex  are  cleft  for 
nearly  one-third  of  their  distance  from  the  margin,  nuiking  a  distinc- 
tive and  unicpui  feature  in  our  Deltoid  fauna. 

Pidihin  is  a  reunirkable  little  genus.  The  fore  wings  are  narrow, 
])ointed,  the  outer  margin  angulated  and  very  obli(iiie.  The  antenna" 
of  the  male  are  laterally  bristled  and  not  specially  modilied.  The  palpi 
in  that  sex  are  peculiar  in  the  deveh)pment  of  a  long  membranous 
appendage  to  the  third  joint,  extending  back  to  the  baseof  the  thorax, 
and  to  this  appendage  is  attached  a  tiift  or  pencil  of  hair,  capable  of 
expansion,  similar  to  the  tuftings  on  the  tore  legs  in  other  genera. 


:h«' 

ntl^ 

>"^ 
)Ie 

fippt 
be  a| 
tribi 
Til 
lari 


A    REVISION    OF    THK    DKLTOiD    MOTHS — SMI'l'II. 


11 


nafiirul 


hv  for«'  tibia  in  the  male  has  thv,  pnxjcss  very  lav|;(',  iii()i)-IiUe  at  tip, 
with  tlie  <leiis('  mass  ol"  scales,  but  \vith(»ut  a  spt^'ial  hair  ]ienci).  The 
loiifif  tarsal  joint  is  tariiislicd  witli  a  small  pencil,  sccMuinfily  not  capa- 
ble ot  expansion,  an<l  rathei'  ornanu'ntal,  an<l  also  with  a  ladle-like 
mppendajie  toward  the  tij),  similar  to  that  in  Ihirrof/ramnut.  It  would 
be  almost  impossible  to  mistake  this  genus,  with  which  the  jnesent 
tribe  may  be  closed. 

The  cliaracters  ot  the  llypenini  as  compared  with  tin;  Ilerminiiniare 
largely  negativ*',  thar  is  they  possess  ntnieol'tlie  speciali/ati<»ns  in  which 
the  latter  are  so  rich.  The  male  tore  legs  are  <iuite  normal,  tlu;  antenna* 
(are  at  most  ciliated  and  to  all  appeaiance  not  unlike  those  ol"  the  fenuile. 

le  palpi  are  all  after  one  type,  long  or  moderate,  obli<pie  or  straight, 
never  (dosely  ajiplied  to  the  front  or  recurved,  secoud  Joint  always 
straight,  with  ui)right  \estiture  as  in  the  secoiul  gr(mp  of  llerminiini. 
While  there  are  no  sexual  modifications  of  a.  secondary  character  in 
this  tribe,  the  male  is  cpiite  usually  larger,  nearly  always  more  somber 
and  <'veu  in  color,  without  strong  contrasts;  the  female  is  often  ([uito 
brightly  and  contrastingly  marke<l.  Often  tlie  male  is  also  much 
more  robust,  clothed  with  loose  woolly  vestituri^on  the  legs  aud  under- 
side, wiiile  tiie  paJpi  are  frcipu'utly  shorter  and  more  obli(|ue.  .\s  a 
whole  the  species  in  this  tribe  are  darker  colored  and  do  not  have  the 
fi'ail  or  tiimly  scahMl  ai)pearance  characterisiic  of  the  llerminiini. 
With  the  exception  of  Copis  all  the  genera  have  the  abdomen  with  a 
series  of  little  dorsal  tufts,  of  which  that  at  base  is  most  prominent. 
These  tufts  are  round,  small,  truncate,!  at  tip,  scaly,  and  very  easily 
removed  by  sliglit  rubbing;  therefore  il  is  rarely  that  a  <|uite  jierfect 
specimen  can  be  found. 

(Jojtis  is  the  aberrant  genus  of  the  tribe,  aud  I  am  not  at  all  con- 
vin(;ed  that  it  is  really  a  Deltoid.  The  palpi  only  se]>arate  the  s[»eeies 
from  the  Caradrina  series,  though  vein  five  of  the  secondaries  is  usually 
quite  strong:  yet  this  is  a  somewhat  variable  feature  in  the  specie^s. 
Even  the  i)alpi  are  not  strictly  Deltoid  in  chara<!ter;  for  although tlu^y 
are  longer  than  usual  and  obli(iue,  yet  the  vestiture  is  directi'd  in  both 
directions  and  the  second  Joint  is  rather  <'la'  ate  at  tip.  As  in  this 
tribe  the  pal[ti  tend  somewhat  in  this  direction,  1  did  not  fee!  myself 
justiiied  in  excluding  the  genus.  It  differs  from  all  the  others  in  the 
tribe  by  its  comi)lete  lack  of  dorsal  tuttings  on  the  abdomen,  by  the 
short  palpi,  and  by  the  short  obtuse  wings. 

tSdIia  is  a  true  Ilypenid  genus  with  moderately  long,  (juite  oblique 
palpi,  forming  with  the  promiiuMit  frontal  tuft  a  distinct  snout.  The 
wings  are  moderate,  widening  regularly  from  the  base;  the  apices  are 
acute,  the  outer  margin  very  obli(|iie.  The  markings  are  (piite  charac;- 
teristie,  forming  obliciue  j)ale  bands  on  a  pearl-gray  ground. 

Itomofoclta  is  the  g<'nus  ni(»st  numei-ously  represented  in  our  fauiifi 
and  it  iiuludes  somewhat  divergent  forms.  The  i)alpi  range  from  mod- 
erate to  very  long,  rigidly  straight  to  oblnpie,  and  there  may  or  may 
not  be  a  sexual  difference  in  this  i)articular.     The  wings  are  always 


ll> 


nriJ.KTIN    IS,    UNITED    STATES    NATIONAL    MUSEUM. 


broad  itii.l  trijuonatc  witli  iniirkiMi  or  rt'ctimfiuliir  aiii<'(\s,  iirver  jircatly 
exloiidcd,  tlio  ontor  nisirj>in  niodrnitely  ol)li<iiH>,  somotiiiH'S  ii  little 
niarkrd  ciiitrally.  It  is  not  miiiktiy  tliiil  this  yciiiis  may  come  to  be 
brokiMi  lip  soiiM'diiy,  wImmi  thcr*'  is  siitili('i<'iit  material  IVoiii  other  faimal 
re.yioiis  to  coiiiijare  wirh  oiir  own.  At  present  il  has  seeim'd  to  me 
dillieult  to  draw  lines  witiiout  t-reatinj^'  even  more  nsmu's  than  Mr. 
(irotc  has  pi'o])osed. 

LonwiHiltrs  (lillers  irom  UomoJovhn  only  in  the  {jfrt'atly  extended 
a])i('es  and  ilie  very  oblicjne  onter  niarj>in  of  the  primaries.  The  palpi 
do  notditl'ei  Irom  those  of  ('(lictalis,  and  no  other  eharacters  of  valne 
have  been  discovered;  tln^  iivnus  restin.u'  thus  mainly  njjon  winj--  Ibrm 
and  jicneral  lialntns.     l-rom  Sidia  it  ditVers  by  the  lonj;-  paljti. 

I'liiflu/jx'iui  is  il  very  y-ood  j;enus;  robust,  especially  in  the  mule,  the 
palpi  rather  short,  priinsiries  narrow,  ai)ices  marked,  outer  mur^in 
evenly  and  oblicpiely  carved,  inner  margin  sinuate,  relievinj;'  the  inter- 
nal anyle  which  thus  forms  a  sort  of  tooth  or  projection.  This  char- 
acter is  uni(iue  and  thus  separates  the  jnenus  from  Jli/peiid,  to  which  the 
narrow  primaries  and  anii>i<;  secondaries  would  otherwise  ally  it. 

IIi/lxjiKi,  which  is  phuu'd  at  the  end  of  the  series  as  an  extrenu'.  of  the 
developnuint  of  its  type,  has  narrow  prinuiries  and  large  broad  second- 
aries. In  the  ])rimaries  the  inner  margin  is  even,  not  sinuate,  tli(^  hind 
angle  not  in  the  least  |»ro<luced  but  rather  rounded.  The  apices  are 
ni  iked,  whih  the  outer  maigin  is  usually  jnore  or  less  markedly  angu- 
lated  at  its  middle.  In  this  genus  also  we  lind  the  longest  ])alpi  of  this 
(Mitire  series,  ])roiected  <lirectly  forward,  snout-like. 

The  species  so  far  as  they  occur  in  our  faumi  are  largely  found  east 
of  the  Itocky  Mountains.  Only  lour  genera  occur  on  the  Pacific  Coast : 
/v/)/cy'«,r/.s' wit  ha  variety  of  our  common  E.  Inhricalifi;  Hvicrofiramma.  with 
one  speciies,  //.  jxillif/erd,  found  in  the  West  exclusively;  and  Ili/pena,  all 
the  species  of  which  reach  California  and  Vanc^ouver,  while  three  of 
the  species  are  contined  to  that  fauna.  N'ery  few  species  extend  into 
(Colorado,  though  one  species  of  Knia  found  there  seems  pci'-uliar  to 
that  State.  (L>uite  a  number  of  si>ecies  range  into  Texas,  which  seems, 
however,  to  have  nothing  that  is  at  all  peculiar.  Arizona  seems 
extremely  poor  in  Deltoids,  and  there  is  only  one  speciies  of  Sulki  that 
is  thus  far  coulined  to  it. 

The  real  home  of  tln^  group  is  in  that  region  extending  from  Maine 
rhrougli  Caiuula,  west  to  the  Great  Lakes,  southward  along  the  Mis- 
sissip])i,  and  eastward  through  Ohio,  along  the  southern  boundary  oi 
Pennsylvania  to  the  Atlantic  Coast.  In  this  region  most  of  the  spe(;i<'s 
now  known  to  us  occur,  and  some  of  them  are  contined  to  it  or  even  the 
more  northern  and  eastern  iK)itions  of  it. 

All  the  species  Hy  at  night  and  are  readily  attracted  to  light  and 
sugar;  but  many  of  them  also  start  freely  during  the  day,  tlyiug  like 
Geometers  an<l  freqncMiting  similar  situations.  Home  tbrms  are  abun- 
dant in  grass  lands  and  may  be  lound  on  fences  or  on  bark  of  trees, 
and  of  these  are  the  Hypenini,  which  readily  escape  observation  by 


iM. 

/or  greatly 
I's  a  liftlc 
•<u»ie  to  he 
'in'r  fiiiiiiiil 

1«m(     to     lll(> 

tlijui    Mr. 

<'Xt01l(l('<l 

TIk^  palpi 
'-  of  value 
wing  Ibnii 

"lalo,  tlic 
'1'  Jnai'f»-iii 
the  iiiter- 
"liis  (rliar- 
A  liicli  the 
it. 

in*^  of  tlic 
(I  so(!()nd- 
tlie  IiiiKl 
pices  aic 

|)i  of  this 

mid  east 
<•  Coast: 
>na.  witii 
l>cna,  all 
three  of 
Jiid  into 
uliar  to 

.seems, 

seems 
lia  tliat 

iMaine 
le  Mis- 
\iivy  oj' 
species 

eii  the 

it  and 

ig-  iike 

Jibii?!- 

tiees, 

on  by 


'» 


A    REVISION    OF    THE    DELTOID    MOTHS — SMITH. 


IS 


tlieii'  (lark   colors.     The    lieiiiiiniini  are   more   fi'iMpient  in  open  wood 
lands  where  there  is  considerable  nndergiowth,  an<l  anionji  tlur  .■^hoi't 
heibagc  I  have  started  up  /Kiiflot/natlut,  C/iijfolifti.  II<H'tnifi((,  and  Phil 
oiuvha.    The  species  aie  not  rare, but  they  rub  very  n'adily  and  are 
not  favorites  with  collectors. 

Few  of  the  larvM' of  our  specii's  are  known.  .\cc<n(lin^  to  Mr.  Ilciury 
l^d wards'  cataloj^ue  of  describetl  early  staucs  theri^  are  ei,i;ht  species 
only,  and  of  thesis  at  least  two  are  somewhat  doubtfully  known.  Vet 
in  this  series  larval  (^haia(;ters  may  aid  in  tixinj^  the  rank  that  should 
be  given  the  llypenini  and  ilerminimi.  So  far  as  my  knowledge 
extends  all  the  former  are  semiloo[)(MS,  lacking  one  ])air  of  alxlominal 
legs,  while  all  of  tlu^  latter  have  the  a!  ioniinal  legs  <;omplete.  The 
Ileliiid  are  yet  unceitain,  but  have,  probably,  sixteen  feet. 

The  nisects  are  not  well  represented  in  most  collectn)ns,  either  in 
number  or  in  (iharacter.  Most  of  them  rub  so  readily  that  they  are 
thrown  av.'ay  before  spreading  it  collected  with  other  material  in  a 
botth',  and  after  one  or  two  experiences  of  this  kind  the  collector  does 
not  take  them  at  all.  For  my  studies  I  used  as  a  basis  the  <!ollection 
of  the  I'liited  States  National  Museum,  thr(»iigh  the  eourtesy  ot  the 
Museum  oHicials.  This  colhuition  is  unusually  rich  in  Deltoids,  because 
)lbr  a  time  I  inadi^  special  c^florts  to  obtain  material  h)r  study  and  col 
lected  considerable  for  my  personal  collection,  now  in  the  Museum. 
At  New  lirui'swick  the  eolle(;tioii  is  a  very  fair  one  in  some  directions, 
and  this  afforded  most  of  the  materia!  for  dissections  and  f«»r  the 
mounts  frcnn  which  drawings  were  made. 

l''rom  Dr.fl.  A.  Lintner  1  have  received  a  large  series  of  specimens  in 
good  (H)ndition,  giving  excellent  opportunity  for  the  study  of  variations. 

^Ir.  Ci.  C  Davis  kindly  sent  me  all  the  Deltoids  of  the  Tepper  col- 
lection, and  also  those  ol  the  Mi<'higan  Agricultural  College,  containing 
very  good  .material. 

Prof.  .1,  II.  (Jomstock  sent  me  a  box  of  specimens  taken  at  Ithaca, 
which  illustrated  the  character  of  the  local  fauna. 

From  Mr.  Neumoegen's  e<dlection  1  had  a  number  of  types  of  species 
described  by  Mr.  (Jrote,  while  all  thci  types  from  the  American  Ento- 
mological Society  have  been  in  my  hands  for  study  and  comparison. 

Several  other  friends  and  correspondents  have  sent  me  such  speci- 
mens as  \  needed  and  asked  lor,  so  I  ha\e  had  before  nie  all  save  two 
of  the  described  speci«'S,  and  with  those  i  am  auto[>tically  ac(|uainted. 
As  all  of  NN'alker's  names  have  now  been  ai>i»lied,  the  i)resent  classi- 
fication of  the  American  Deltoids  !nay  be  fairly  considered  as  well 
grounded. 

SYNOPSIS    OK    TllK    (iKNKUA    AM)    IMdMKU    (iliOCPS    OK    l>KI .T<»ll)    MOTIIS. 

1.   I'iil]ti  sleiuler,  npcurved  iilmiy  the  front;  anttMior  ieinora  of  tin;  iiiiilc!  tlin  k- 

cikmI  at  linse,  elso  tlio  \{\^  Jioi'iiial IIrlii)ti,  -. 

I'alpi  slender,  nitcnrvotl;  or  straiglit  orohli(|iio,  with  iijinylit  scaly  vcstitiui', 
iiialvinji  tlit'in  hla(l<!-likt";  (ho  lore  Ictja  of  tli"  inalo  alway.s  nioditiiMl 
and  tufted,  tibia  alw  ays  abbreviated  and  with  a  long'  anterioi'  )iroees8, 

Ilcrminiiiii,  ',i. 


M 


14  IMJLLKTIN    18,    L'NITKD    STATES    NATIONAL    MUStlUM. 

1.  I'!il|ii   sliiiinlit  or  (il>lii|iic.  witli    ii|iri;!;lit   mciiI.v    vcHtitinc,  tliiti  tiiiUHVerscly 

toiiiprcsMcd;  iiiiterioi  Iv^^h  of  iiiiilo  ciitirrlv  iKMiiiai Ilyptnitii,  I  I 

2.  Miiltt  iiiitoiiiiii'  cilijittxl,  \vil)i(>iit  Hpocial  iiiodilicut.ioiits;  |)i-iiiiuriuH  witli  obttim^ 

.ipiiTH  ami  roitiulcil  oiitcM'  iiiai)j;iii Kri/Ki'xis  (p.  I". 

;{.   I':ilpi  slimier,  sinotillily  Mcaiod,  upciirvcil  almifi  Mir  front;  »icklt'-Hlia|»tMl I 

I'aipi  tiaii.svfiHtil.v  coiiipiosNt'd,  Htraij^iit  oi  ohliiino;  iiover  api»li(«l  to  tlio 
front;    ciotlictl    willi    nprijuht    mcuIuh,  giviiij;    it   a   laj,'^*'''    l>lii«le-lili<' 

a|ipoiu'an('i) ^ 

I.  Male  antiMiii.i'  with  two  ur  tliroo  Joints  at  basal  tliinl  fiiniislietl  with  )>uinttMl 

(;orii(!oiis  |iro('«KM<'«  «!ovcroil  by  mcuIch 5 

Mali<  anttMuni'   witli   a   poinlt'il   tiiltof  hair  at  basal   thixl,  but  no  special 

processes (i. 

Male  antonnii-  eiliated,  simply 7 

i").  jMalo  anteiin.e  lat(Uiilly  luistied   ■ ZANtl,()(iN.\Tll.\  (p  27) 

Male  aniennie   bi peel! na ted llouMis.v  (p.  I,*)). 

(I.  Malt)  ant(Miii;e  bristltMl;  jniniaries  obtusu,  trifoliate Tktanomta  (p.tJl). 

7.   I'riiiiaries  minow,  with  acute  apex  and  oblnnie  outer  iiiai};iii    Mi.i;i'1INa  (p  57). 

H.   rriiiiaiies  willi  tlu!  accessory  coll  i>iesciit !l. 

I'riiiiaries  wil  lioiil,  accessory  cell IL'. 

!>.   I'rimarieH  anirulatud,  llie  middliMit  outer  iiiai'<;'iii  ]ii'odiiced,  e\ca\'atu(lbeIow 

apex II 

Primaries  md  aiiH:iilated Id 

ID.   AiileiiMM'  ol   (he  male  leiii^thily  lii|)ectiiiated,  \vithoiit*s])«!cial  niuditieation  at 

basal  iliird, TlllLdMi;  i  ha  (p.  ,M)i 

Anleiiiia'  (if  male  laterally  bristled,  with  a  nodosity  covering  t\\o  or  three 

loiiieons  piucesses  at  basal  I  liird Cin'Kii.n  a  (]>..">  1 1 

Aiiieuna'  ol  luale  cilmleil,  without  special  modilications lIvri'.M  i..v  ( p.  7(>' 

11.    Male  allteimic  coarsely  pectiuated DlCHCKTls  (p.  ><'_') 

IJ.   I'rimarie.s  mit  aiiLCulated,  apex  distinct  or  rectangular;  male  antenna-  with 
a  ]>oiiiicil   tiill  (d'  liMir  at  iiasal   third,  coveiiiif*  a  bciid  and  lin;;er-like 

I'loccss KkXIA  (]>    ()".). 

Primaries  with  the  outer  mar>>iii  iirodiiced  iit  middle,  any;ulated;  usually  a 

little  excavated  lieh>\\   apex  ;   male  aiiteiiu.e  bristled Hi 

i:>.    Primaries  biinid,  entile  in  Imlhsexes:  palpi  norimil  . . . .  Hi:  ii;i;o(ii!A.M.MA  (p.7?<>. 

rriuiaries  liniad  ;    in    (he  male  deft    nr  split,   from  tlio  middle  of  the  . inter 

margin  nearly  one- third  inward  (iAHV:i;ASA  (p,  H0> 

Prima  ricM  narrow,  pointed.  ( lit  ire;  jialjii  of  male  with  a  nu'inbranous  ap]iend- 

aiic  luiiiiNliiMl  with  a  loni;-  pencil  of  hair Pai.THIs  (p  S4  ). 

11.   Primaries  wii  h  apices  obtuse,  outer  ma  ruin  rounded C'Al'l.s  (p  f^)- 

Primaries  inuad.  trifoliate,  apices  marked,  outer  niar<;in  (ddiiiuo  and 
rounded,  with  a  variably  marked  tliouuh  always  slij;ht  anjiulation  at 
»«i'l«lh' I!(».\i<)l.(ii  IIA  (p. 'tl^ 

Primaries  broad,  trij;«inate.  with  lengthily  produced  apices  and  very  ob- 
liqmdy  I'Mindcd  outer  iiiarjri  n  ;   palpi  very  lonu  and  straifxlit. 

Lo.MAXAI.TKS  I  p.  Idili 

Primaries  naiiower.  with  acute  apices  and  oblj.|ne  outer  marifiii  ;'palpi  short, 

oblic|ue,  lormiim-  'i  p'>inted  snout Sai.ia  (p  f<9). 

I'rimaries  narrow,  secondaries  v<My  broad. 

liiiiei  iii.irmn  of  luimaries  sinuate,  inner  aii^le  produced,  prominent 

I'l.A  rilVPKNA  (jt   110) 
Inner  maiyin  of  primaries  even,  inner  aiiyle  lonndi-il HvI'KNa  (p.  IPJ' 


m' 


tiM 
til. 

ill 

SCi 


4 


m 


^ 


IM. 


A    UEVISION    OF    TIIK    DKLTOID    MOTHS — SMITH. 


15 


ii8VorH<*ly 
1 1  mil  nun,  I 

til   ulltllNI- 
Kll.XIM  (|l.  1". 

i|hmI —       I 
'<!    to   tilt' 
)ljl(Ut  like 
,v 

I    )>uilltl!(l 

i»  Hpcciiil 
(, 

ATIIA  (p    27- 
{.MISA  (1>.  I"!) 
)l.l  TA   (|».  til 
■UNA  (1»    "(7/ 

!i. 

11'. 

0(1  below 

II 

\v 

'iitioii  lit 
i:tha  (p.  ,10) 
Of  tlircc 

11. II A  (It.:. I) 

VILA  (p.  7(1) 
.'KTIS  (p.  XL') 
!iii'  with 
;;t'i-like 

MA   (p   (m). 
siiiilly  ii 

i:; 

.M.MA  (p.  7?<>. 

i<!   niter 

ASA   (p,  80) 

ippciid- 
iHis  (p  K4). 
\n.><  (p  r'X). 
lie    and 

tiiiii  at 
It  IIA  (  p.  'M  i 

r.\    ob- 

i:s  (]>.  lO'.h 
1  .-^lioi  t, 

i.lA    (J.    f<!)). 

ifiit 

^•\  ^p   110; 

«A  (  p.  Ill' 


OenuB  EPIZEUXIS,   lliil>iiir. 

IMIO.   Hiiltiior,  VerzoichnisB,  Il-IH. 

IS.V.l.   WalU.T.  (.'at.  IWit.  Miih.,  Hctoroc-ra,  XVI,  \',V2. 
\f<~t'.'.  CimU',  I'laiiH.  Am.  Kiitoni(iloH:i('iil  Soc,  i\',  Ko" 
lldlit.  ( ilU'lir(.', 

lMr>l.  (iiiciu'o,  SpocJHH  (.•'iioral,  I)»'ltoi»lc«,  76. 

I'mK/lilfiliinnd,  (Iroti). 
1X71.  (in. it',  Hull.  Miitl.  Soc.  Nat.  Sii,,  M,  17. 

lOycs  iiakod.  lar^»'.  j^lohosc.  l-'nmt  smooth;  jintciiiiii',  situated  on 
tlio  vertex  siiid  (dose  to  thecoiiipoiiiid  eye;  ocelli  small,  sitiiiited  beliiiid 
tli(!  aiitemia'  and  also  riose  to  tlie  compimiid  cy*'.  Aiiteiiiiii'  inoderato 
ill  leiiji'tli;  ill  tluMiiale  with  lateral  bristles  and  hair  tiifts,  sometimes 
scaly,  not  alike  in  any  two  spej-ies,  therefore  separately  descniied  for 
each;  in  the  leinale  th(;y  ar(^  simjile  with  shorter  lat(Mal  bristles.  The 
palpi  are  mod('rat(!  or  (donj^ate,  <'lostdy  scaled  or  with  ratluu'  roiifjli 
vestitnre,  always  iipenrved,  more  or  lesssi(!kle-Khape(l,  always  reat  hin^ 
the  vertex  and  sonictiim's  extendiiiii'  far  beyond  it,  their  terminal  Joint 
moderate  or  neatly  eipialiiijn'  the  second  in  le!i,t>th  and  acutely  terini 
nated.  The  ton,mie  is  moderately  well  developed.  Tlie  body  is  moderate 
or  rather  slij^hl,  the  thorax  proportionately  small,  nntnfted,  the  al)do- 
men  lonjicr,  rea(diiii,in  to  or  exceeding  the  anal  anyleof  the  secondaries; 
i-ylindrieal,  nntnfted.  The  lej;'s  are  smoothly  scaled,  inoportionate, 
nnarined  save  foi-  the  nsnal  spurs.  In  tlie  male  the  Jinterior  femur  is 
somewhat  eiilarjicd  at  bas«'.  inferiorly  excavated  toward  the  tip  to 
receive  tlie.  short  tibia,  in  which  the  epiphysis  is  larj^er  than  in  ihe  female, 
in  th(^  latter  sex  the  anterior  le^'  is  normal. 

The  wiiij»saie  rather  larj4(^  in  proi)oi'ti()n  to  the  body,  varyinj;'  some- 
what from  a  strictly  tri<;oinite  type  to  a  somewhat  elonjjjate  form,  but 
hai'dly  subeiptal,  thoiiyh  inner  and  costal  marj;in  are  nearly  of  the  same 
length. 

The  oiimmentat  ion  is  very  similar  throiiiihont  and  (Consists  of  stronyly 
(lenttited  traiisver.se  dark  lines,  accompanied  by  white  or  i>ale  shade 
lines,  As  the  j>roiind  color  is  light  or  dark  the  black  or  wliite  ])arts  of 
the  lines  become  more  |)romineiit.  The  .secondaries  ar<^  usually  .some 
^hat  ])aler  than  the  gj-oniul  color  and  .ire "also  marked  with  more  or  less 
^  obvious  transv<'rse  lines. 

'^      Ther(i  is  a  ureat  deal   of  \  ariation  in  size  and   some   in   ai>i»earance 
amoin>'  the  species  of  this  genus  and  the  female  is,  as  a  rule,  the  larger. 

Mr.  (Irote's  reason  for  a(!cepting  Epizciixh  rather  than  llclia  for  this 
genus  seems  to  be  well  founded,  ami  my  acceiitance  of  th(!  term  (loes  not 
imply  that  I  consider  our  sp(Mies  distiiu^t  froui  the  l*iUro])eaii  forms 
referreil  to  niider  (Inem'e's  generic  term. 

There  are  two  fairly  well  marked  series  in  the  s])eci(^s  of  this  genus 
which  might  almost  l)e  considered  as  being  of  generic  ViUne  but  for  the 
occurrence  of  intermeiliate  forms. 

The  fir.st  of  these  seri(^s  is  (diaracteri/ed  at  a  gliince  by  the  smooth, 
glistening  vestitnre,  the  S''jdes   being  closely  ai)presse(l,  and  with  a 


16 


(UJLLETIN    48,    UMTKD    STATES    NATIONAL    MUSKUM. 


hi 


sliiniiiy,  almost  iiivnny  i\\}\m\Vi\uvi\  The  palpi  an*  l(»ii«',  closely  Healed, 
iipcurvcd,  and  siidilc  siuiix-d,  (•oiisid«'ral)l.v  «'X<«'tMliiiK  tiie  vertox,  and 
tlu'  tcruiiiial  Joint  is  nearly  us  loni>  aw  tlie  sn-ond  and  su'iitoly  tenni- 
niited.  The  taiMul  daws,  wo  tar  iis  exsiiniiicd,  an-  sinijjle.  'I'o  this 
Keiies  Mr.  (Irotc  has  applied  the  term  I'seiuhifiltiNM,  iiuil  it  coiiti.vins 
four  speeies. 

/-;.  luhiinili.s  is  a  smoky,  blackish  hrown  species,  in  which  the  tiaiis- 
verse  lines  are  ohscnrely  pak'  and  broken,  an<l  the  darkei-  acconipany- 
in;^  lines  only  lainlly  traceable.  It  varies  very  decidedly  in  si/e  and 
to  Home  extent  in  winji  form;  but  it  has  a  clniracteiistic  appearance 
ditllcnlt  to  mistake.  Sometinn's  pale  sp«'cimeiis  occur,  and  in  these  the 
dark  transverse  lines  are  evident,  the  pah!  lines  beinjj'  more  or  less 
comi)leleIy  merjiejl  into  the  jiround. 

J'J.  (IciiticuldUx  is  closely  allied,  with  almost  exactly  the  same  mark- 
i,i^H;  but  it  is  of  a  dull,  i)ale  luteous  j-ronnd  color,  powdered  with 
brown  scales,  and  the  transverse  lines  are  blacikish.  From  pale  forms 
of  the  preceding  it  is  distinjiiiished  by  havinji'  the  space  between  the 
nu'dian  an<l  transverse  posterior  line  dark  lllled  toward  the  inner 
margin,  which  inives  the  win;:'  ii  M>''f^'  chaiacteristi(!  appearam-e. 

I'J.  f(>lini(l(tlis  is  a  miu'h  smaller  specties  than  either  of  the  preeedinj;-, 
an<l  is,  indeed,  the  smalh^st  in  the  ^enus.  The  prinr.iries  urr  usually 
an  almost  uniform  smoky  brown,  the  nnirkinys  beiny'  barely  per(;ept- 
ible  in  local  varu'ties  only  ami  the  secondaries  are  almont  as  free  from 
nnu-ulation,  though  much  paler.     The  species  is  not  easily  mistaken. 

I'J.  scahialis  is  not  nuu-h  lar.iicr  than  the  last  pi'ccedin^;  but  the 
ground  color  is  almost  black,  and  lacks  almost  (iompletely  the  glisten- 
ing' appearance,  whde  the  transverse  lines  are  quite  distinctly  white, 
narrow,  and  broken,  in  sharp  contrast  to  the  others. 

Internu'diate  between  the  above  series  and  that  next  "allowing  is 
E.  hiHrciilii,  described  by  me.  In  appearance  it  belongs  at  tirst  sight 
with  tlu'  following,  having  a  j)owdery  vestiture  without  gloss;  but  tlu' 
])aliti  are  (piite  decidedly  like  those  of  IJ.  .scohialis,  and  it  resend>les 
that  sy/ecies  in  the  daik  color  of  the  prinmiies  and  the  nairow  distinct 
median  lines.  The  secondaries  are  pale,  however,  and  uisriuctly 
nuvrked  by  transverse  lines.  A\  ficohialis  and  I],  hutrcntii  further  agree 
in  having  the  abdomen  black  with  narrow  white  rings  margining  the 
segments.  The  tarsal  chiws  are  toothed,  resembling  tln^  following 
series. 

The  second  s<Mies  to  which  reference  has  been  made  ditVers  in  the 
rougher  vestiture  without  any  trace  of  sheen  or  glisten,  and  on  the 
contraiy  a  tendency  to  the  ])owdery  api)eai'ance  marked  in  E.  Uuuentii. 
The  palpi  are  more  robust  ami  are  not  nearly  so  long,  reaching  to  the 
vertex  or  slightly  exceeding  it,  except  in  E.  nuijordlis,  in  which  we  have 
a  tendency  to  the  preceding  series,  though  the  termitial  Joint  is  not  so 
acutely  terminated.  In  this  series  the  tarsal  claws  are  toothed,  ami 
three  species  are  referable  to  it. 


i'ii 


A    KKVIHION   OF    THK    DELiVW    MUTIIS HMiTIl.  17 

/v.  imijonilis  is  ii  spocies  wliicli  has  1m'«mi  confused  with  l»<>rli  H.inmtla 
mihI  A'.  (Umriralin  a\u\  is  in  scwjic  respects  intennefliiile  l)«>t\veen  tliein, 
possessing  eliiirueter.s  however  I liii(  ally  it  very  stron;;ly  to  series  I. 
It  IS  the  laij;est  of  th«i  Hpt'eles  (tf  the  seeoml  seiU's,  and  in  winj;  torni 
is  very  like  speeiincnH  of  /v'.  hihrivalis  of  tlie  same  si/e  and  less  tri«;fo- 
nate  than  in  either  of  the  others.  The  |)al|U  considerably  oxeced  the 
vertex  ami  are  ion^'er  tlian  in  eitlu'r  <»f  its  nearei-  assoeiates,  thoiiyh 
as  mnch  shoitt-r  than  in  I-!,  hihrlrolis.  In  color  and  niacidation  it  is 
dusky  and  powdery  like  h\  (vitiiihi;  hnt  it  has  a  distinct  picfminent 
precedinj;' shade  to  tiie  costal  region  of  tlic  subterminal  line,  and  in 
this  it  icsenddos  /v'.  mnvrividiH. 

/v.  ((mevienUs  is  whitish  ashen  gray  In  (rol«»r,  with  the  transv  rse  lines 
distinctly  marked,  the  median  shade  heinj;-  espe(;ially  prondnent,  and 
thv  suhterndnal  line  preceded  by  a  distinct  black  shade. 

E.  (Viuulu  is  a  more  even,  dnll  inray,  very  nuich  powdered  and  with 
oat  any  sharj)  eontiast  in  nnu-nlation;  thongh  all  the  lines  are  nsually 
distinct  and  very  like  the  preeedinif. 

ANALYSIS  oi'    rrn:  sn:<  ihs  oi    i:i'izr.i'x:s. 

I'iilpi  iniicli  PXcCediny  thi'  \ crlcx,  toriiiiii;'!  Joint  iiriitc,  cloacly  nciiled,  iiciirly  as  lon^ 
as  t \w  si'ciiikI. 
Vestitiirc  MiiKiotli,  jflintt'iiiii;;'. 

'riio  jjrouiid  colrir  is  .smoky  black,  nicdiaii  lines  \y.\W\  ini'diaii  space  oven, 

I.rilliK  Al.lS. 

Tlic  ground  color  is  dully  sordid  Intooiis.  tlie  nicdian  liiiCH  hla(  kisli ;  a  diisUy, 
siilxiuadratc  iiatdi  in  (lie  outer  lowtn'  anf^le  of  the  median  space, 

I)i;ni''  ci.Ai.is. 
(Jroniid   color  smoky  black,  all  tlie  lines  obsolete  or  but  viif^iidy  traceable; 

a  \ cr.N  small  species itori'XDAl.ls. 

(ironnd  color  black,  seccnidarics  Hcarcely  paler;  lines  narrow,  broken,  con- 
trast iny;,  white s(  OKI  A  MS. 

Vestitnro  ron<:;li,  not  i;listcnin<;-,  i)o\vdcry. 

lUackish   f^ray.   the   maciilatioii  distinct,   lines   narrow,   l)lacU  and    white, 

strongly  dentate i.a'.  iiioxm. 

I'alpi  rtiachiiifi  to  or  somewhat  exoeedin,";-  vertex;  t<'rnunal  Joint  nsiially  considera- 
bly shorter  than  th(>  second,  nion-  roniihly  clothed,  not  so  acntcdy  ter- 
minattMl. 
Macnhition  contrastinji;;  blackish,  sharply  niarkcid  on  a  lif^lit  '^vny  ground,  size 

nioder.ito  . A.Mi.iJK  Ai.is. 

Macnhition  not  contrasiinji  excei)t  tor  .a  black  cr)stal  blotch  iireccMlniff  tlu^  snb- 
tcrminal  line;  ground  ((dor  powdery  dull  gray,  sutl'used  with  yellowish; 

si/.c  large M.\.ii>l!Ai.ls. 

Macnhition  (d)scnr«;.  not  contrasting'   ground  color  dull  gray,  jiowdc'ry  over 
lutcous;  size  moderate KMli-A. 

Epizeuxis  lubricalis,  (Jeyer. 

18H'2.  (Jeyer,  Zntriigo,  IV,  1!)  lig.s.  ()()">.  (ilHi, /s'^xc^ckj/s. 

18.")!.  Onent^c,  .Species  (Jenoral.  Dcltoides,  77, //(/i(/. 

185!».  Walker,  Cat.  l?rit.  Mns..  lleterocera,  XVI.  l.Sf).  ICpKciuis. 

1874.  (inde,  Hull.  Hull.  Soc.  \at.  Sci.,  II,  17,  l'scii(l(t<ihn:s,i 

18!Sl.  (irote,  Canadian  Kiitoni<dogist.  Xlll,  HI, /i^iccH.ci*. 

78()-'— No.  48 -' 


I  li: 


n 


18  BFLLETTN    J8,    UNITED    STATES    NA'lloNAE    MI'SEUM. 

18H0.  Coqr.illott,  (Jaiiiiiliaii  Entoniolo.iiist.  Xll,  ll.hirvii. 

isni.  (Isicm'c.  Si)e<'i('s  (ioiiernl,  Delfoidos.  Tti,  llclia. 

18r.l».   Wiillicr,  Cat.  I'.rit.  Mas..  Ht^ti'iMccia.  W  l.  V.VA,  Kiiizciuix. 

IS":!.  (Jroic. 'I'raiis.  Am.  Enloiiinli)!iiial  So',,  1\'.;10S.  lldia. 

1!S7I.  (Irote,  liall.  Hurt'.  Soc.  Nat.  S<'i.,  Ii.  17,  pr.  syii. 

HS:i.  (jroto.  Canadian  Entomologist.  \I1I,  !•!.  \m.  rv;). 

siirmialis.  \Vall<cr. 
IS,")!!.  Walker.  Cat.  liril.  Mas.,  ilctcioccra,  XVl,  L'll.  l;hi>Hua. 
1S77.  (Jrolo,  Canadian  Enttnnolonist,  IX,  2!).  i>r.  syn. 

\  ar.  orcidnilaliK.  Smith. 
ISSI.  Smitli,  linll.  iU<lii.  Enliniiolonical  Sn<-..  \1I.."..  \n\  var. 

(Jioniid  color  of  body  and  fore  wiiifis  ii  dark,  sooty.  j;list(Miing,  black 
isli  brown;  abdcmcu  and  sccontlaiics  paler  with  a  yellowish  tinjic. 
Head  and  thorax  iinniaculate.  I'riinarics  with  the  transverse  lines 
variably  distinct,  but  always  traceal»le,  consisting;  of  a  dark  and  a 
I'uIg  line,  of  which  the  pale  line  only  is  usually  distinct,  ilasal  line  fre- 
<piently  waiitiiij;'  and  always  incoiispu-uous.  Transverse  anterior  line 
outwardly  obliiiue,  douljly  toothed  in  tiie  c(»stal  region,  and  outwardly 
cur\ediii  tlie  inrerspaces  below;  thedusky  lineis  theontei.  TriUfsverse 
posterior  line  with  the  dark  line  inwardly,  in  g'-':crjil  course  sli;;htly 
outcnrved.  (luite  strongly  donticulato.  the  outward  teeth  on  the  veins. 
Tiie  snbterininal  line  is  pale,  irregularly  sinuate  and  dentate.  There  is 
a  Innate  black  t(Uiniiial  line  and  a  yellowish  shade  line  at  the  base  ol' 
the  I'ringes.  The  median  shade  line  is  obscurely  marked  in  a  few 
s]t(H;iinens;  but  as  a  rule  is  ol)solete.  Tlu^  orbicular  is  reduced  to  a 
yellowish  dot  and  is  (piite  freiiuenlly  enlirely  Avanting.  The  veniforin 
is  usually  marked  only  as  a  yellowish  hiniile,  sometimes  accompanied  by 
a  blackish  mark  through  its  center  oi  outer  margin.  The  se(!ondaries 
have  a  yellowish  tinge,  most  marked  liasally  and  they  darketi  out- 
wardls,  maiked  by  alternate  dusky  and  paler  baiids  and  lines,  some 
times  almost  obsolete,  somet  iniesciuite  well  marked,  but  never  distinctly 
dentate.  JJeneath.  the  wings  an^  smoky,  varying  to  dull  powdery 
luteous  with  a  median  and  extra  inediaii  dusky,  followed  by  j)ale  lines. 
IJoth  wings  wi;!i  a  discal  lunule  always  rath<M  pr<jminent  on  the 
secondaries,  irciiuently  quite  reduced  .uid  soinetiines  obsolete  on  the 
primaries, 

ll.Npanse  of  wings,  !i.">  to  [{)  uim.  =  l  to  !.(»()  inches. 

IIAIUTAT,— I'liited  States  generally;  northward  to  Nova  Scotia,  and 
found  from  midsumni.'r  to  autumn.  In  Texas,  dales  are  May  and 
October,  and  a  seecunl  brood  is  indicated. 

The  variation  in  this  spe(;ies  is  prinmrily  in  size  and  in  the  ground 
color,  which  in  j)ale  specimens  results  in  giving  prominence  to  the  dark 
lines,  while  in  the  (birk  specimens  the  pale  lines  become  most  evident. 
A  large,  jtale  form,  in  whi(!h  the  lines  become  diftiise,  is  fcumd  <ni  the 
Pacitic  Coast,  and  this  is  my  variety  ore /V/c/* /«//«,  which  1  have  not  seen 
from  the  East. 


A    REVISION    OF    THE    DELTOID    MOTHS SMITH. 


19 


The  luiteniia'  in  both  sexes  iire  funiislied  with  hiteiiil  bristles,  and 
ill  both  tii(!re  is  a  dense  <;l()tliiiij^'  of  scales,  which  j^ives  the  ineiiiber  a 
decidedly  thickened  appearance.  In  the  male  the  joints  are  shortand  the 
bristles  are  set  in  very  dose  to  the  base — so  close,  indeed,  that  they  a[)pear 
to  arise  from  the  suture.  Above  tlu^  ])oint  at  which  these  lateral  bristles 
are  inserted  are  small,  teat  like  processes,  which  are  I'liniisiied  with  a 
tut't  of  bristly  hair,  and  otiicr  similar,  though  shorter,  hairs  are  on  the 
upper  surface  of  each. joint,  arisiii.i''  fiom  small,  tubercle  lik;.'  processes. 
Among  these  processes  are  small  pittin.u's  without  hair,  whii-h  are  j^rob- 
ably  sensiu'y  in  chai'acter.  In  the  female  the  antennal  joints  are  longer, 
more  cylindrical,  and  the  lateial  bristles  are  h'ss  ]>roiniiient,  set  into 
distinct  ]»its  on  the  sides,  though  rather  close  to  the  base,  and  they 
lack  the  bristly  tubercles  entirely.  The  harpcs  of  the  male  aie  (piite 
simi)le,  the  upper  angle  i)roduced  into  a  pointed  i>rocess,  wliiie  inferiorly 
and  toward  the  base  is  a  somewhat  chitiiious  process  with  a  knob-like 
tii»,  which  is  furnished  with  short,  stiff  spines  aid  haii. 

Epizeiixis  denticulalis,  llaiv«  y 
1S7.").  lliirvcv,  I'.iill.  liiilV.  Soc.  Nat.  Sci.,  II.  I's:!.  rxciKluglossd. 
(Iroundcoh)r  a  pale,  somewhatyellowish.gray.  with  black  powderings; 
abdomen  and  secondaries  ])aler,  the  fornu'r  with  the  edges  of  the  seg 
ments  pale  ringed,  the  latter  more  thinly  sealed.  I'rimaries  with  all 
the  lines  distinct.  Basal  line  very  close  to  the  root  of  the  wing,  and  not 
prominent :  dusky.  Transverse  anterior  line  nearly  upright,  <l;n  k  sepia 
brown,  preceded  by  an  indetined  lineonlya  lit  tie  paler  I  lian  the  ground 
c<»Ior,  indented  on  the  veins  and  iiregularly  oittciirved  in  the  inter- 
spaces. Transverse  i)osterior  line  irregular,  stroiigl\'  denticulated,  as  a 
whole  iiearl\'  parallel  with  the  outer  margin,  dark  brown,  followed  by 
an  indelinite,  slightly  i)aler  shade.  An  obvious  median  .shade  line, 
smoky  brown  in  color,  crosses  the  mediiin  spa<'e  over  the  reiiiforiii,  and 
below  that  spot  darkens  itsoiiter  portion  to  the  inner  margin.  Subter- 
miiial  line  palt-.  strongly  and  irregularly  dentate,  variably  distinct,  jnv- 
ceded  by  a  \aiiably  distinct  dusky  shade,  which  is  most  marked  on  the 
costa.  A  series  o;  Insky  terminal  lunules,  beyond  which  the  pale 
fringes  are  <'nt  with  brown.  The  orbicular  is  wanting,  <u'  traceable  only 
as  a  paler  dot.  Ifenifoiin  a  paler,  yellowish  luiiiile,  outwardly  defined 
by  a  dark  ci«'scenr.  Tlie  .secondaries  are  cro.ssed  by  three  \  ariably  dis- 
tinct dusky  bands,  the  two  outer  of  wlii(rh  are  more  or  less  dentate. 
The  bands  are  not  sharply  marked  except  at  their  outer  margin,  thin- 
ning out  toward  base  m  each  case.  A  distinct  blackish  terminal  line. 
r>enealh,  the  primaries  are  dusky,  and  there  is  a  more  or  less  evid«Mit 
reprodaction  of  thetraiisver.se  posterior  and  sublerminal  lines  of  the 
nitpi  r  snie.  The  secondaries  are  more  Inteoiis,  and  iia\('  two  distinct, 
brown,  cxcn  extra  median,  lines  and  a  l>lackish  marginal  line.  Uoth 
wings  ha\(' adiscal  liinnle,  that  of  the  piimanes  less  distinct  and  some 
times  obsidele. 


1:; 


"20 


lULLETIX    18,    TJNITHn    STATES   NATIOXAL    MUSEUM. 


■jil 

"  li 


I- 


Exi>ansc<)l\viii,i>s,  2')  to  .SOiiiiii  =  l  t(;  l.L'O  inches, 

llAiJiTAT.— New  York   to  Texas;  District  of  Columbia  in  .Inly  and 

August. 

This  s))ecies  is  by  no  means  so  common  as  tiie  precedinji',  and  is  not 
jjenerally  distinguished  from  it.  It  is  sometimes  ranged  as  a  pale  Ibrm 
of  IJ.  liihficaliN,  or  more  frecpiently  a  pale  form  of  that  species  is  labeled 
E.  dnttii'iilfilis.  Tln^  ])i-esent  species  is  always  recognizable  by  the 
oi)vi(ms  median  shade  line  and  the  dusky  patch  in  the  outer  ir.-'erior 
ai:gie  of  the  median  s])aee.  The  rather  i>rominent  ])ale  rings  to  the 
ifiargin'of  the  abdominal  segments  ai'e  also  somewhat  distinctive.  From 
the  spc(!imens  I  have  seen  the  si)ecies  varies  mucii  less  m  size  and  in 
gidiind  color  than  h\  hihriralis,  and  is  a  very  Mcll-detined  one. 

Infortunately,  I  failed  to  find  among  the  material  before  me  any 
female  specimens,  hence  can  not  si»eak  of  the  antennal  charaeters  of 
that  sex.  The  male  antenna'  resemble  (piite  strongly  those  of  E.  hihti- 
rahs:  but  ixU  tin-.  featur<'s  are  more  intensitied:  the  Joints  are  broader, 
the  scab's  more  dense,  the  lateial  bristles  are  longer  and  more  stout, 
the  tuberculate  pro(!esses  bearing  hair,  are  more  ])roininent  and  the 
hairy  tufts  are  more  coiisi)icnons.  and,  finally,  the  tubercles  giving  rise 
to  sei)arate  hairs  are  miicii  more  numerous.  Examined  with  a  hand 
lens,  the  impression  is  that  tiic  member  is  much  more  bushy  tliaii  m  the 
l)i('ceding  species.  In  the  primaiy  sexual  characters  there  is  little  dif- 
fering from  the  i)receding,  Tiie  ty})e  of  the  hari)e  is  exactl>  the  same, 
and  only  the  proportion  of  the  parts  differ  slightly.  In  wing  form  ^his 
sjtecies  is  (piite  considerably  different  from  E.  luhricdlis,  tiie  primaries 
being  distinctly  more  trigonate,  projiortioiiHtely  shorter  and  broader, 
making  the  outline  (piite  markedly  different. 

Epizeuxis  rotundalis.  Walker. 

18(i5.  Wulkor,  (at.  iliit.  Miis..  llcifrorcia,   X.\.\I\'.  1111.  //,<n»(.N((. 

horcidix,  Siiiitli. 
ISSI.   Sinitli,  r.iill.  liklii.  Ijilniiioloi'ical  Sor.,  \1I,  n,  //,/(((.    ' 
lS!t:5,   Siiiitli.  Hull.  [\  S.  Nat.  .Miis..  tl.  'iTH.  ).r.  syii. 

I'tirhc.sii.  I'l'i'iic'li. 
ISKI.    I'lviich.  I'.iill.  III.  Stall'  l,al».  .\at.  Hist..  I\',  (I,   l'scii(la;iliisii,i. 

Head,  thorax,  and  primaries  blackish,  smoky,  glistening;  second 
aries  and  abdomen  paler,  more  thinly  scaled.  J'rimaries  almost  immac- 
ulate, only  tlie  most  vague  traces  of  the  ordinary  lines  being  observable 
in  most  specimens.  Sometimes,  however,  all  of  them  are  traceable  or 
at  least  feebly  indicated  by  pale  scales,  though  more  often  they  are  not 
traceable  in  any  way,  and  w<'  have  a  iinitorm  smoky-brown  surface 
delightfully  easy  to  describe.  The  secondaries  are  also  as  a  rule  nearly 
immaculate,  though  soipe  traces  of  the  usual  median  ami  extra  median 
dusky  brands  maybe  discovered,  and  in  some  cases  these  are  fairlv 
well  marked.  I>en(>ath.  the  wings  vary  from  <|uite.  jiale  whitish  gray 
to  smoky,  and  the  usual  transverse  lines  are  s(»inetimes  well  nmrked, 
especially  oil  the  secondaries.  The  maculation  is  most  evident  when 
the  ground  is  lightest  and  then  also  a  discal  spot  is  usually  i»resent. 


A    KEVISION    OF    THE    DEl/lVHD    MOTHS SMITH. 


21 


Kxi>anse  of  wings,  17  to  'JO  niiii,      ().<>8  to  0.80  inch. 

IIaiutat. — Ciuijulii  to  N'iiJL'inia,  west w aid  to  the  lootliills;  .hinc  and 
July. 

Tliis  is  tlie  smallest  of  the  species  in  avei-'^M'  e.\))anse,  and  is  still 
shorter  and  rounder  winged  than  /v'.  <UnficKUiHN.  It  is  (iiiite  easily  reeo*;' 
iii/able  by  its  almost  immaculate  wings  and  is  by  no  means  uncommon 
locally.  It  seems  more  tie(inent  in  northern  localities,  but  1  have 
received  it  from  Virginia,  and  \vestwai<l  it  occurs  in  Iowa  and  Nebraska. 
I  ha\e  not  had  ir  from  ('olorado  or  any  point  in  the  Sonoran  fannal 
region. 

The  auteunse  are  well  developed  in  both  sexes,  fn  the  male  the  joints 
are  well  marked  and  short,  the  lateral  bristles  are  long  and  stout  and 
are  set  in  deep  ])its.  Near  to  the  insertion  o'"  these  lateral  bristles  is 
a  rather  large  process  set  with  hair  about  the  tip,  and  near  the  tij) 
is  another  similar  lu-ocess  also  clothed  in  the  same  way,  while  other 
smaller  tubercles  and  pits  give  rise  to  single  hairs.  This  gives  the 
joints  a  much  greater  number  of  bristles  and  thereibre  a  more  brushy 
or  brush-like  appearance  uuder  n  hand  lens  than  any  of  the  other 
s)»ecies  thus  far  described.  The  antenine  of  the  female  are  furnished 
only  with  weak  lateral  bristles,  much  shorter  than  those  of  the  male, 
uid  the  joints  are  without  hairy  ])rocesses.  The  male  sexual  char- 
acters are  of  the  same  ty[)e  as  in  A".  liihric((li.s,  but  ditl'er  in  that 
the  su]>erior  margin  of  the  liari)e  is  not  drawn  out  an<l  chitini/ed, 
while  the  jjroeess  from  the  inferior  margin  is  much  longer  and  more 
prominent. 

The  Ps('w1(tflh>s,sa  forhcssi i,  French,  is  based  upon  specimens  in  wliicli 
the  maculation  is  <pii(e  well  delined,  and  all  of  it  tra<'«'able.  resembling 
thus,  somewhat,  a  small  JJ.  hihricalis,  exce])r  in  wing  form.  To  the 
kindness  of  I'roi".  S.  A.  Forbes  I  owe  an  opportunity  to  examine  one  of 
the  types,  which  enables  me  to  make  the  referenc<^  definitely.  A  com- 
pirison  of  the  figures  given  on  Plate  i  will  at  once  show  the  relatiou- 
sliip  of  the  forms. 

Epizeuxis  scobialis,  fhcite. 

1880.    (inite.  Noitli  Ann  ricin  Kiitoiiiolojiist,  I,  !»"),  I'mndaglonm. 

(Iround  color  smoky  biack  without  luster:  secomlaries  scarcely 
paler;  abdomen  narrowly  whitt;  banded  at  the  edges  of  the  segments, 
rrimaries  with  all  the  lines  jjiesent,  narrow,  white,  and  broken,  acconi- 
panied,  however,  by  black  lines  which  are  traceable  on  close  examina- 
tion. IJasal  line  reduced  to  a  slender  white  line.  Transverse  anterior 
line  distinct,  though  usually  broken  and  sometimes  reduced  to  a  series 
of  white  scales;  upright  as  a  whoh',  but  somewhat  irregularly  out- 
curved  in  the  inters])aces.  Transverse  ]»osterior  line  distinctly  marked 
on  the  eosta  by  a  triangular  white  patch,  but  beyond  that  reduced  to 
a  broken  track  ol  white  scales  iii  most  instances;  but  it  is  sometimes 
distinct  thouiih  narrow;  in  course  it  is  as  in  the  preceding  species 


irf: 


22 


BULLETIN    IS,    UNITED    STATES    NATIONAL    MUSEUM. 


li 


\\l  ;l 


and  is  inejiiilaily  dentate.  Subtermiiial  line  always  d'stinet,  muTovv, 
wliite,  inej-iilarly  sinnate  and  <lentate,  best  marked  in  the  costal  region. 
A  series  of  sonunvhat  obseurc  terinin}'.!  8])ots,  interrnptefl  by  more 
prominent  wliite  dots.  The  orbieiilar  is  distinct  as  ji  white  dot  in  all 
the  specimens  I  have  seen  and  the  renirorm  as  a  narrow  nprijiht  white 
streak  which  is  scarcely  a  lnnuleor<-res(;ent.  Se(U)ndaries  with  median 
and  extra-median  narrow  deiiticniated  white  lines,  wiiicli  are  variably 
distinct;  in  some  specimens  a  black  discal  spot  is  visible.  Heneath, 
black  and  white  powdered,  primaries  repeatiii}-'  the  snbterminal  and 
transverse  posterior  lines,  while  the  secondaries  reproduce  the  macnla- 
ti<m  of  the  njiper  side.     IJotli  wings  have  a  black  discal  si)ot. 

I'^xpaiise  of  wings,  22  to  2~>  mm.     (>.<S.S  to  1  inch. 

il  Mill  AT.— Eastern,  Middle,  and  Central  States.  ><'ew  York  in 
.Inne  and  'Inly. 

This  is  one  of  the  smaller  species,  and  moat  nearly  resembles  IJ.  luhri- 
cdlis  in  wing  (brin;  seeming,  indeed,  <»nly  a  somewhat  further  stej)  in 
the  depth  of  the  ground  color,  and  replacing  by  white  the  sordid  yel- 
lowisb  of  the  ])ale  lines.  This  contrast,  the  narrow,  iisnally  broken 
white  lines  on  almost  dull-black  ground,  as  well  as  the  a\  bite  ringed 
abdomen,  makes  this  species  easy  of  recognition.  The  sexual  pieces, 
so  far  as  they  have  been  examined, res(unble  E.  ////»'/ca//,s(piite closely; 
but  I  have  mtt  had  a  male  fr<'e  for  dissej^tion.  The  species  is  not  com- 
mon and  is  most  usually  taken  at  night  in  my  experience. 

The  antenna'  dilfer  (piite  obviously  from  those  of  /v\  luhrii'ttlis  in  both 
sexes.  In  the  male  the  joints  are  less  marked,  the  lateral  bristles  are 
feeble,  not  as  well  dev('h)i)ed,  indeed,  as  in  uiie  fern  de  of  its  ally,  and 
there  are  no  j)iIiferous  processes  or  tubercles.  A  comparatively  few 
hairs  rise  from  small  punctures,  but  they  are  scant  in  number  and  feeble. 
In  the  female  the  lateral  bristles  are  yet  farther  reduced  and  are  hardly 
more  than  stout  hairs,  and  we  have,  thus,  an  actual  and  marked  struc- 
tural character  supplementing  those  drawn  from  maculation. 

Epizeiixis  lauientii,  Smith. 

1893.  Sniitli,  Entoiiioloirical  News.  IV,  S:5,  Epizriixis. 
(Iround  color  of  head,  thorax,  and  primaries  ])owder.\'  blackish  over 
dirty  whitish,  the  latter  cohtr  visible  in  the  markings.  The  usual 
transverse  lines  arc  rather  prominently  define<l  l)y  the  whitish  color, 
but  the  accom])anying  black  lines  are  in  all  cases  traceable.  Basal  bne 
distinctly  marked.  Transverse  anterior  line  u])right,  its  course  irregu- 
lar, the  most  prominent  modillcation  consisting  of  a  stiuared  outward 
bend  in  the  submedian  interspace.  Transverse  posterior  line  strongly 
denticulated,  its  course  on  the  whole  a  somewhat  even  and  not  very 
marked  outcurve.  Subter-uinal  line  i)ale,  prominent,  irregularly  sinu- 
ate and  dentate,  a  broken,  black  terminal  hue,  beyond  which  is  a  very 
narrow  ])ale  line  at  the  base  of  the  fringes,  which  are  blackish  and  ])ale 
tipped,  cut  with  narrow  pale  streaks  opposite  the  veins.    There  is  an 


--i': '::'■■}(. 


f*l 


A    REVISION    f)F    TIIK    DKI/l'OID    MOTHS — SMITH. 


2^ 


HI 


f 


obvious,  soiiH'Avhat  difluse  aiul  iieaily  upright,  black  lucdiaii  shade 
bnc.  Tlio  orbiciiliir  IS  palo,  i)un('t''»nn.  Tlie  rciiiroini  is  ])ale,  some 
wliiit  iiidelinite  and  variable  in  si/e,  with  a  more  or  less  complete  cen- 
tral lunuie,  sometimes  reduced  to  a  meie  point  in  the  inferior  portion 
of  the  spot.  Secondaries  i[»"ray.  with  a  blackish  overlay,  forminj;-  a  dark 
snbbasal  baud  and  distinct  nHulian  and  extra  median  lentate  pale 
lines.  There  is  an  interrupted  black  terminal  line  and  the  t'rinj^cs  liave 
a  central  dark  shadin<j-.  AbdoiiKMi  blackish,  the  edjues  of  thesefi'inents 
annulate  with  whitish.  Beneath  powdery,  the  primaries  !>lackish  out- 
wardly, with  the  transverse  posterior  and  siibterininal  lines  of  tlici 
n])per  side  somewhat  indelinitely  li^troduced:  secondaries  uray,  the 
i"'.irk;n}4s  of  the  upper  side  less  distinctly  dui»licated,  and  with  a  very 
(.■stinct  black  discal  lunuie. 

1^-vpan.se  of  wings,  2.')  to  2(i  inm.=:(>.!»2  to  1.04  inches. 

IIAUITAT.— Mitchell  bounty,  N.  C;  in  ,Iuly. 

This  species  is  most  nearly  alli«'d  to  J^J.  siolnolis.  ai^Teeinj;"  with  it  in 
I  he  dark  (!olor  and  tlu^  banded  abdomen.  It  dillers  in  the  wider  wings, 
powdery  clothing  of  both  wings,  and  the  pale  secondaries,  agreeing 
in  these  characters  with  the  following  species.  On  the  other  hand,  Ww 
palpi  are  entirely  like  those  of  IJ.  scohialis,  aud  this  s|»ecies  it  also 
resembles  most  nearly  in  anteniial  structure.  In  both  sexes  the 
ant«'nna'  are  (piite  hea\  ily  scaled,  the  scales  somewhat  upliftetl.  In 
the  male  each  Joint  is  furnished  with  a  single  i)air  of  lateral  bristles, 
which  are  rediu-ed  to  bristU  lik(}  hair  in  the  female,  so  the  joints  may 
be  aluios:  said  to  be  simple. 

This  is  a  curiously  intermediate  form.  perha])s  more  nearly  related 
to  the  I  *  se  11  da  (J  Umna  series,  but  in  clothing"  and  ornamentation  more 
allied  to  Epizcitris. 

Epizeuxis  ameiicalis,  Guenoo. 

1851.  Gnt'iioo,  Species  (Jeneral,  Deltititles.  7S,  j)!.  (i,  lig.  5,  Ilil'ia. 
!«,")!•  Wiilker,  Cat.  IJrit.  Mus.,  Hctcioceia,  XVI,  131,  Kpi:(iijis. 
1S7H.  (Jroto,  Traus.  Am.  Kutoiiiological  Sdc,  IV,  HOT,  Epiziuxis. 
1883.  Hdoy,  Canadian  KntDmolof^iHt,  XV,  171,  larva. 

Hcriplipeiiiih,  Walker. 
IS.'iS.  Walker,  Cat.  Urit.  Miia.,  Hotoroccra,  XV.  17(5,"),  Microplnina. 
IStlH.  (Jroto  aud  Robinson,  Trans.  Ain.  Kntoniolo^ical  Soc,  II,  7'.',  pr.  ayn. 
1873.  Groto,  Trans.  Am.  Ent(>molo,i];ical  Soc,  IV,  307,  pr.  syn. 

(Irouiid  color  of  head,  thorax,  and  primaries  pale,  bluish  ash  gray, 
more  or  less  black  powdered.  Head  and  thorax  not  maculate.  I'ri 
maries  with  the  outer  part  of  median  space  yeUowish  brown,  varying 
in  distinctness,  and  beyond  this  the  wing  is  more  or  less  sulfused  with 
sordid  yellowish  brown,  which,  as  a  rule,  docs  not  exteml  to  the  costa. 
All  the  transverse  lines  distinct.  Ihisal  line  marked  on  the  costa  only 
by  a  blackish  spot.  Transv«'rse  anterior  line  upright,  irregularly  out- 
curved  between  the  veins,  black,  preceded  by  a  white  line,  which  is 
variably  distinct  and  marked  outwardly  on  the  costa  by  a  <listinct 
trigonate  black  patch.     Transverso  posterior  line  black,  followed  by  a 


-s-^- 


24 


lUILLKTlN    IH,    INITKIJ    STATES    NATIONAL    MT'SKIIM. 


|l> 


iii .' 


wliitc  line,  iiiid  piecodcd  on  tliccostii  by  ;i  distiiictbliick  or  brown  bl»tcli, 
wiiirh  iiiMii  ll.v  extends  to  the  inception  of  the  niediiin  line.  In  its  course 
it  is  ucntely  dcntated  on  tiie  veins,  outwardly  oblirjue  fronj  costa  to 
vein  4,  tlienee  incurved  to  the  inner  niarj-in.  Subtenninal  line  promi- 
nent, white,  preceded  by  a  distinct  black  shade  innch  broader  toward 
the  costa  an<l  irrejiularly  sinuate  and  dentate.  Tlie  median  line  is  dis- 
tinct, somewhat  dilluse,  nearly  upright,  a  little  irregular  in  the  ui)per 
halt  of  its  course.  A  black  terminal  line,  which  luoadeus  out  supe- 
riorly, forniing  a  somewhat  prominent  bla(;k  shading.  Fringes  scudid 
yellowish,  cut  with  smoky  brown.  Tiu'  orbicular  is  obsolete  or  small, 
imu'ked  by  a  dittuse  yellowish  spot,  wliu-h  is  n(^ver  defined.  Kenitbrm 
notdelined,  always  evident,  rather  large,  consistuiy-  ola  yellow  iiinule, 
inwardly  marked  by  the  median  line  and  outwardly  merged  into  a  rusty 
l)rownish  shade,  which  extends  to  the  transverse  posternu-  line.  Sec- 
ondaries smok.x  brown,  sonu^times  paler,  often  with  a.  yellowish  suf 
lusicm,  (;rossed  by  three  blackish  lines.  The  tirst  of  these  is  within  the 
middle,  and  is  even,  not  sha<led.  The  second  is  median,  somewhat  bent 
at  the  middle  of  its  course,  and  followed  by  a  yellow  shading.  The  third 
is  submarginal,  quite  strongly  bent  about  one  third  from  the  costa,  and 
also  followed  by  a  yellow  shade.  A  distinct,  continuous,  black  terminal 
line,  beyond  which  the  dusky  fringes  are  cut  with  y«01ow.  The  abdomen 
is  gray,  the  edges  of  the  segments  yellowish  white,  giving  a  somewhat 
obscurely  bandec'  appearance.  I'eneath,  the  wings  are  dull  luteous, 
with  black  and  white  powderings,  crossed  by  three  dusky  lines,  of 
which  the  second  and  third  are  followed  by  a  pale  shade.  A  black 
terminal  line.     Secondaries  with  a  linear,  black  discal  mark. 

Expanse  of  wings,  20  to  L!7  mm. =0.80  to  1.10  iii,  lies. 

llAiuTAT.— Canada,  southward  to  Florida  to  Texas;  westward  to  the 
Kocky  Mountains:  New  Mexico.  In  its  northern  range  it  occurs  from 
.laly  to  Sei»teinber;  in  Texas  to  November. 

A  very  common  and  not  very  \ariable  species,  always  distinguished 
by  the  ])ale  whitish  or  bluish  gray  ccdor  and  the  contrasting  transverse 
lines,  which  are  emphasizt'd  on  the  costa  by  distinct  black  or  blackish 
blotches  or  marks.  The  dilation  of  the  uiijier  part  of  the  terminal  line 
into  a  broad  sliade  is  also  peculiar  to  the  species,  and  is  a  very  excel- 
lent distinctive  •liaracter.  The  antenme  in  the  male  are  furnished 
with  long,  stiuit  ateral  bristles,  longest  at  basal  third  and  very  gradu- 
ally diminshing  toward  the  tip,  set  in  near  the  base  of  each  side  of 
each  joint,  llelow  thi.s  lateral  bristle  is  a  short  in-ocess,  inconsi)icuous 
toward  base,  becoming  a  short  pectination  near  the  middle,  and  again 
decreasing  toward  the  ti[);  becoming  first  a  ni"re  tnbercle  and  then 
<lisai)])earing  altogether.  This  process  is  furnished  with  a  large  senscuy 
bristle  at  the  tip.  and  is  set  with  smaller  hairs  at  the  sides  and  base. 
On  the  outer  side  of  each  Joint  is  another  conical  elevation  or  tubercle, 
a  little  beyond  the  middle  of  each  Joint,  and  this  also  gives  rise  to  tufts 
of  sensory  hairs.     This  tubercle  disappears  gradually  toward  the  tip 


-  -35 


i 


A    REVISION    OF    THE    DELTOID    MOTHS — SMITH. 


26 


as  tln' joints  olonjiatc.  Tlic  lUMU'rsidc  of  all  tlic  Joints  are  pitted,  most 
proniinentlv  so  toward  the  niiddic,  in  tlic  I'eniale  tlic  joints  are  fur- 
iiislu'd  witli  sliort  lateral  bristles,  arisin^i'  very  close  to  tlie  base,  and 
there  are  no  lateral  tnbercles.  The  sensory  pittinj>s,  liowever,  are  even 
more  jjroniin'Mit  than  in  tlie  male,  and  tlie  snrfaee  on  tlu^  upi)er  side  is 
iml)ri(iited  in  ajjpearanee.  The  harpes  of  the  male  are  (jnite  simple, 
iieaily  s<imirely  cnt  ot!"  at  tip,  and  there  is  a  broad  eorneoiis  process 
near  base  whicdi  is  ol)tnsely  produced  supr-riorly.  Altogether  the  spe- 
cies is  a  well-marked  one. 

Epizeuxis  niajoralis,  new  H))i<ios. 

(ieneral  gioun<l  color  dull  smoky  fuscous,  with  luteous  and  black 
powderings.  Head  and  collar  sometimes  nnirkcd  with  fuscous.  Tri- 
iiiaries  with  the  costal  region  whitish  gray,  with  the  inception  of  the 
oidinary  lines  marked  by  ibisicy  i>atches,  less  distinct  than  in  E, 
(i)iiiri<-<itis.  Ordinary  lines  all  <leiined,  though  hardly  distinct  except 
on  costa.  IJasal  line  obscuie,  marked  by  white  scales.  Transverse 
anterior  line  nc^arly  upright,  uueveidy  ontcurved  in  the  interspaces, 
iilackish,  outwardly  marked  by  a  costal  dusky  spot,  inwardly  by  a 
paler  shade,  becoming  white  on  tlui  costa.  Transverse  posterior  line 
irregularly  ami  strongly  dentate  as  a  whole,  with  a  tolerably  even  ont- 
<-urve;  incurved  in  the  submcdian  interspace,  somewhat  ddated  on  the 
cosiaand  foUowed  by  a  pale  shade,  which  is  white  on  the  costa,  else 
yellowish,  except  iu;a"'  theijmer  margin,  wherci  white powderings  some- 
times obtain.  Subterndnal  line  irregularly  dentate  and  angulat<', 
white  in  the  costal  region,  where  it  is  preceded  by  a  distinct,  Itroad 
black  shade,  beconnng  yellowisji  and  sonu'times  almost  lost  toward  the 
inner  nnirgin.  A  narrow,  even,  or  only  slightly  lunate,  termiiud  black 
line.  I'^ringes  smoky,  cut  with  luteous  over  the  interspaces.  The 
iiMMlian  shade  is  nearly  ni)right,  vague,  ditfuse,  sometimes  hardly  trace- 
able. The  ordiiuuy  spots  are  marked  as  indefinite  luteous  blotches, 
and  sometimes  a  luteous  shade  is  ai)i)arent  through  the  median  cell. 
►Secondaries  paler,  more  powdery  than  the  |)rimaries,  with  three  trans- 
verse lines,  of  which  the  outer  is  most  evident,  whitish,  and  sharply 
dentate.  An  even,  dusky  terminal  line.  IJeiieath  whitish,  jmwdery, 
with  tlnee  confused  nideiinite  transverse  lines  antl  a  disi-al  sjxtt  on  all 
wir.gs. 

Ivxpanse  of  wings,  L*!>  to  ."U  mm.        l.-O  to  l..'>7  inches. 

liAHiTAT.— New  York  (Ithaca);  Ohio  (('olnmbus);  Illinois  (Carbon- 
dale). 

I  have  six  spe(!imens  of  this  species  before  me,  all  of  them  females. 
The  sjx'iries  is  curiously  intermediate  in  maculation  Ix'tween  fJ.  (vmuUi 
and  E.  amrrinili.s,  but  is  larger  than  either,  and  differs  from  both  in  the 
long  i)alpi.  which  considerably  exceed  the  vertex,  while  tiiey  are  shorter 
tiiaii  in  the  I'sci((h(()los.s((  series.  In  the  shape  of  the  i»iiiiiaries  it  more 
nearly  resembles  I'J.o'mula  in  the  rounded  a]»ex  and  outer  nmrgiii  than 
/-;.  amerimUs,  in  which  the  apex  is  rectangular  and  somewhat  well 
defined. 


:l: 


'i 


f 


m 


m 


i-it 


w 


26 


nULLKTIN    IH,   TNITKl)    STATES    NATIONAI.    Ml'SEl'M. 


It  is  innio  tliiiii  ]>iohiil)l('  tliiit  s|K'ciiii('iis  of  lliis  species  sire  in  (>\Uvv 
colIectioiKs  mixed  with  eitiier  E.  (vmiiUi  ov  I'lumnicolix,  i)iil  the  species 
seems  more  rare  tiiim  either.  It  is  represented  ii.  the  Niitioiml  Museum 
collections  by  two  poor  specimens,  withont  locality,  marked  .Inly,  and 
which  were  found  with  (vmiiltt. 

Epizeiixis  cemiila,   lliibiirr. 

ISir>.   Iliiliiicr.  KxotiHclui  S('hiiiott('rIiii;;f,  III,  f.  (i.  a.,  Iilidilolow. 
iSltl.   iliiliiicr,  WTzoiclniisH,  ;{|t'i.  Kpiztiixis. 

ISr»l.    (JlK'IirC,  S|ir(ic.s  (iciirlill,  I  )<lt()i(lfS.  7>*.  IfrH<l  iliilllhllix. 
tH5!).   Walker,  Cat.  Hiit.  Miih.,  Ucl.ioitia,  \V1,  IMI,  l-^piznuix. 
1873.  (Jroto,  Trans.  Am.  EiitoiiKtlojjical  .Sk;.,  IV,  HOT,  l-:pizrii.rh. 

molli/rra,  Walkt^'. 
1«.')8.  Walkfr.  Cat.  IJrit.  Mils.,  Ilctcroccia,  XV,  I7(i.").  Micyophjim. 
lS(j8.  (Jroto  ami  ivoWliisou  Trans.  Am.  Kntdmoldjiic;.!  Soc,  II,  7!l,  j:pi:ri(.ris. 
1S7I.  (Jroto,  Bull.  Bntr.  Soc  Nat.  Sci.,  II.  17.  ]>v.  sv.i. 

hennhiioidi's.  Walker. 
ISdO.   Walker,  Can.  Na.t.  .'nid  (ieol.,  V.  2.59,  Bomopfera. 
1865.   Metlinne,  Cana<lian  .Imirnal,  .\,  -'."(S,  Humopto-ii. 
1877.  (irote,  Canadian  Eiitoniolojrist,  I.\,  lis,  Epttcnxix. 
181)3.  Sinitli,  r.nll.  II,  I'.  S.  \a(.  Mus.,  :i7it,  pr.  Mvn. 

e(l)ifi(ilin.  Walker. 
I8(;(),   Walker,  Can.  Nat.  and  fJeol.,  V.  I'fil,  Honnisa. 
1877.  (Jrotc,  Canadian  Kntonudujii.st,  I.\,  !.'!>,  pr.  syn. 

coiicim.  Walker. 
18()().  Walker,  Can.  Nat.  and  (ieol.,  V,  L'tw,  Hoimha. 
1H77.  (Jrote,  ('anadian  I'-ntoniolof^ist,  IX,  2!l.  j)r.  syn. 

(Ironiid  color,  a  dull  smoky  "ray  over  liiteons;  powdery.  Head  and 
thora.v  uniform;  inunacidate.  Primaries  uniformly  colored,  without 
contrasting  shades:  the  transverse  maculation  distinct,  but  not  con- 
trastino  or  i)romiiient,  and  not  marked  by  costal  spots  or  l)lotclies. 
Basal  line  reduced  to  a  black  mark  on  the  median  vein  and  .sometimes 
a.  small  costal  sjx)!.  Transverse  anterior  line  nearly  ujirifiht,  with  three 
variably  marked  ontcurves  in  the  inrersi)aces;  single,  black.  Trans- 
verse posterior  line  black,  denticulate,  as  a  whole  outcnrved,  somewhat 
retracted  in  the  submedhm  inters[)a(;e,  followed  by  a  yellowish  .shade 
whi(^h,  as  a  rule,  is  marked  on  the  (josta,  but  is  rarely  conspicuous 
elsewhere  in  its  course,  Subterniinal  line  pale,  sinuate  and  irregularly 
angulate  or  dentate,  usually  defined  on  both  sides  by  a  darker  shade; 
but  this  may  be  eonliiied  to  a  preceding  shade,  and  may  be  entirely 
ab.sent.  Terminal  line  black,  Inoken  into  lumiles,  followed  by  a  ])ale 
ory(illow  line  at  the  ba.se  of  the  usually  immaculate  fringes.  The  median 
.shade  is  blackish,  nearly  upright,  v<ny  variably  marked  and  sometimes 
(piite  i)rominent.  Orbicular  reduced  to  a  small  yellow  dot  as  a  I'ule. 
Iteniform  yellow,  large,  somewhat  defined,  interiorly  marked  by  the 
median  shade,  and  often  with  two  small  black  dots  marking  the  upper 
and  lower  margins,  Ibrming  the  only  prominent  feature  in  the  wing 
maculation.  Secondaries  much  paler,  nune  grayish,  and  ai>i)earing 
more  thinly  sealed;   powdery,  crossed    by   three   transverse  lines,  of 


A    RKVISION    OF    rilKlJEIiTOIl)    MOTHS — SMITH. 


27 


wliirli  tli(M)iit('r  is  pale  jiiid  slightly  (Icntalc.  A  I)1()1«mi,  l)la('U  toniiinal 
hue,  IoIIow^mI  by  a  yellow  liiu;  at  the  l»as<'  of  the  tViiijie.s.  Heneaih, 
powdery,  the  wiiijis  (Tossed  by  three  veiy  vaiial»Iy  disf  iiiet  tiaiisxcise 
lines,  of  which  the  outer  is  iiioic  or  less  deiil  ieiilate. 

l']\I»anse  of  winj^s,  I!)  to  L'S  min.      O.To  to  l.lli  inches. 

llAnrrAT. — Eastofthe  Rocky  IMountains:  northern  and  eastern  ran  ye, 
.Inl.N'  to  September;  south  and   southwest,  Mareli  to  Novend)er;  Colo 
lado  in  S<'])tenib)M'. 

'I'his  is  ii  common  species,  with  <iuit«'  a  ranye  ol'  variation  in  size,  and 
a  considerable  variation  in  the  distinctness  ormacnlat  ion.  The  j^reatest 
contrast  is  slK)wn  in  tiie  renitbrm  spot,  which,  while  normally  yellow, 
is  sometimes  invaded  by  the  median  sliade,  and  becomes  occasionally 
black  an<l  quite  stronj^ly  marked,  dil1'erinj>'  prominently  from  tlie  more 
usual  form.  Sometimes  tbrms  occur  in  which  all  contrast  is  lost  ami 
they  are  then  abnost  uiiiforndy  .uray  and  powdery.  The  antenna'  of  tli:. 
niah^  have  the  usual  lony  lateral  bristles,  and  Ixdow  these  a  well-marked 
pe(;tination  or  i)rocess  of  moderate  lenj^th,  considerably  exceedin<»* 
those  of  /v.  aitwriealis,  but,  like  them,  clothed  with  tufts  of  sensory  hair. 
Thei'C  are  no  supplementary  lateral  tubendes  as  in  the  allied  si)ecies, 
and  the  pits  on  the  underside  of  the  Joints  are  less  numerous.  In  the 
female  the  antenna'  have  the  usual  slender  lateral  bristle  and  the  under- 
side of  the  joints  are  marked  with  sensory  pittinjis.  The  scaly  mark- 
ings so  distinct  in  /A  ((inrricalis  are  here  barely  traceable.  Tiie  sexual 
characters  of  the  male  are  well  nnirked.  The  harpes  are  narrowed  at 
the  nuddle  and  drawn  out,  and  the  tip  is  rather  irregularly  rounded. 
The  clas])ers  arise  from  a  stout  base  and  aie  attached  to  the  harpes  to 
the  middle,  whence  they  are  sei)arate  as  stout,  slightly  curved,  cyliw 
drical,  ami  pointed  pronjiS.  The  species  thus  ditlersthrouuhout  from  IJ. 
<nwfc'r/m7/.s',  of  which  I  was  atone  time  inclined  to  consider  it  a  variety, 
deeminji'  the  form  now  separated  as  /v\  majoraliH  to  be  an  intermediate 
type,  which  indeed  it  is,  so  tar  as  maculation  alone  is  concerned. 


t^ 


Genus  ZANCLOGNATHA.    I.etltufi 


185".   fiCderor,  Noctuincu,  Ilnropiis,  211. 

rUyoUta,  (iroto. 
1S7.'].  (iroto,  Bull,  r.iiir.  Soc.  \iit.  Sci..  I,  :{<». 

Clvptomilx,  (irotf. 
1S73.  Grotf,  'rnins.  Am.  I\iit<>iii()l();.;i<'Ml  Soc,  I\',  MOl. 

Mciinchjitd,  (iroto. 
\H1',\.  (iroto,  'J'raiis.  Am.  I'/UtoiiiolouicMl  Soc,  I\',  'MM'}. 

Eyes  naked,  large,  globose.  Front  smooth,  in  perfej-t  exami)les  with 
ii  ]>ointed  tuft  l)etween  the  iinteniia';  but  this  is  a  variable  and  often 
defective  feature.  Tongue  hmg  and  stout.  Antenna'  moderate  in 
lengtli,  arising  from  the  vertex,  close  to  the  <'ompound  eye,  the  basal 
joint  (Milarged,  much  stouter  than  the  remainder  '"  the  stalk;  but  the 
dilation  nuu'h  less  nmrked  in  the  feniiile.  In  the  male  the  antenme  ai-e 
tarnished  with  lateral  bristles  on  ciich  joint,  and  at  about  one-third 


:| 


1K' 


m 


28 


MULLKTIN    IS,  IINITKI)    STA'I'KS    NATIONAL    MU.SKUM. 


; 


(Voiii  l»iis<'  tlu'iv  is  a  tliickriKiijn'  of  tlio  stoin,  |»riiici|>;ill,v  ciiiiscd  hy  a 
(louse  clolliiii;:  ..I'  scales  oiilwaidly,  iiiaikiiif;  a.  niore  or  less  evident, 
bend,  and  beyond  tins  aie  two  (»r  three  Joints,  eaeli  of  wliieli  lias  also 
II  stout,  elawlike  inocess  on  tlio  inner  Hide.  Two  is  the  usual  niiinher, 
and  three  the  eveepticui.  In  the  I'eniale  the  antenna-  are  simple  (U- 
sealed,  or  witli  snndl  lateral  bristles,  and  as  no  two  species  are  (|uite 
alike  in  this  particular  this  feature  will  be  separat«>ly  described  for 
each.  The  palpi  are  very  lony,  eiirvin;!'  upward,  far  exceedinj;'  the 
vertex,  the  second  Joint  much  the  lonjiest,  the  vestiture  (piite  closely 
appn'ssed  or  even  smoothly  scaled,  never  with  upright  or  blade  like 
upper  edu'e:  (pule  uiarkedly  siekleshai)ed.  Ocelli  distinct,  elose  to  the 
i'onipoMud  <'ye.  and  (piite  well  removed  tVom  the  base  of  the  aiitenn.e. 
The  body  is  sli<ilit  compared  t(>  the  wiii'-s,  t!:"  thorax  i)roi)ortionately 
snndl.  unlufted.  the  abdomen  <-ylindrical.  sube(iual.  untuftt'd,  reachinj:;' 
to  or  exceedin*;'  the  anal  anj-le  of  secondaries.  Le^s  lonji',  slender, 
closely  scaled,  the  posterior  much  the  lonj>est  and  in  those  the  tibia- 
Jive  stouter  tlian  elsewhere.  There  is  no  armature  save  the  usual  spurs 
of.the  inicMIc  and  hind  tibia-,  aiul  these  are  very  lon«-  and  s(tniewhat 
uneipial.  the  inner  spurs  considei'ably  the  best  <leveloped. 

In  the  nudes  llu'  fore  leus  are  considerably  moditied  and  curiousiy 
tutted,  coxa,  femur  and  td)ia  bt'comin;;  greatly  chaiif^ed  to  acconuiK) 
date  these  abnoiinal  a])pendaj;es.      As  Ihey  vary  iu  the  species  and 
liaM'  been   already  jijenerally  characterized    they  will    b«>   se|>arately 
descrilx'd  undei-  the  specitic  headinjis. 

The  win.ys  are  larjie,  the  ])riniaries  tri.monate,  with  reetanjiular  or 
obti;se  apices  and  very  evenly  and  not  greatly  curved  outer  niarjiins, 
the  inner  marj^in  not  nuich  short«'r  than  the  costa.  The  v«'nation  is 
normal;  but  varies  somewhat  in  the  arrauf^enuMit  of  the  veins  arisiiiff 
from. the  accessory  cell;  10  being  sonietimes  from  the  middle  of  tlie 
upper  nnir^in,  sonu'times  from  the  end.  and  sometimes  even  from  a 
stalk  with  S,  a  shoi't  distaiuie  beyond  it. 

I'ndcr  the  above  definition  are  included  the  s,  'cies  of  I'iti/olita. 
('I<'j)t()mit<i,  and  Mcfidclijitii,  as  well  as  tli(»se  usually  referred  to  Zduchxj- 
ikiIIki,  because  I  haxc  lound  it  impossible  to  tind  \alid  characters  for 
their  separation.  Mv.  (Irote  never  attempted  to  distinguish  tlu'  genera 
exeei)t  in  the  most  indctinite  way,  scarcely  doing  ?nore  than  to  designate 
tin'  type,  and  the  dilference  in  superlicial  api»«'araiM'e  has  kept  them 
ai)art  since. 

In  the  si)ecies  referred  to  Mqfachi/ta,  the  median  lines  are  thickened 
at  their  inception  on  the  costa.  torming  more  or  less  pronunent  sjjots, 
and  this  gives  the  species  a  characteristic  appearance,  which  almost 
entirely  vanishes  in  /.  invonspiciialis.  There  is  also  a  seeming  dilfer- 
ence in  wing  form,  which  proves  elusive  on  <"ireful  examination,  and 
leaA-es  nu'  without  a  reasonable  basis  for  the  genus. 

Ckpiomila  lias  nothing  at  all  to  supi)ort  it  save  its  distinctive  macu- 
latiou.  and  e\  en  this  is  close  in  type  to  that  of  Z,.  hcrijata.    The  type 


A    KKVISION    OF    rili;    DKI/mil)    Mo'lilH  —  SMI  in. 


20 


and 


,111)1  <»iily  siM'cimiMi  ever  seen  by  iiie  is  impel  (ectly  set  and  is  inisleiHliii^- 
III  tlie  iinpressioii  it  j,'ives  of  the  wiiij,^  loiiii  ainl  yeneiiil  lialiitiis.  'I'liis 
(|(»('S  not  se«'in  to  dllVer  in  the  least  iVoiii  /ancloifiKitlni,  wliile  no  stiiu;- 
tiiial  eharartcr  is  apparent  to  nie  on  close  (>\ainination. 

I'ili/nlita  li;is  slightly  nion'  <l('tenninat«'  apiees  (»!'  tli»'  primaries, 
enhanced  l>y  a  somewhat  narrower  base,  making''  them  a  little  more 
evenly  tripmate  than  in  the  normal  type;  but,  nnlbrtnnately,  thisdiHer 
jMice  is  iiKMUislant  and  becomes  yrcatly  lessened  in  soiiMi  larj-c^  females, 
makiiif''  it  thus  an  iinsal'e  basis  ol  division.  The  species  Ills  very  neatly 
amonj^;  the  typical  species  of  the  jicnus. 

The  species  formerly  rcfencd  to  Miifiiclii/la  forma  fairly  well  marked 
division  oi'  the  {jfeiins.  reeo;^ni/-able  by  the  costal  enlar^Cfiiient  of  tlu^ 
(tr«linary  sjiots  which,  even  wlieii  least  marked,  is  in  <piit(5  stroiif*' con 
trast  to  the  even  threadlike  lines  of  all  the  otlu'r  species  save  /.  mini- 
iiHilifi,  which  siJinewhat  reseaddes  /.  iiimnsitieiudis  in  this  particular, 
i)nt  is  mnch  larmier  aiui,  in  other  respects,  (piit<'  well  separated. 

X.  litinalis  is  at   once  separable  from  all  otlu'r  spe<'i«'s  by  a  series  of 
three  distinct  brown  costal  sjiots,  of  which  the  outer  is  apical  and  (bl 
lows  the  snbterminal  lim>.     It   is  also  the  larjn4'st  of  this  series  ,ind  in 
all  respects  the  best  marked  as  well  as  the  most  common. 

Z.  theralis.  Walker,  or  Z.  (Icccittiicdlis,  (Jrote.  is  :;  decidedly  smaller 
firay  speci«'s,  in  which  the  costal  spots  on  the  median  lines  are  black 
and  (piite  well  marked;  bnt  the  third  spot  is  miu*h  less  delined,  is  not 
apical,  and  precedes  the  snbterminal  line,  eontinnin^  for  a  {greater  or 
less  distance  to  emphasi/e  this  line,  and  often  no  more  marked  on  the 
costa  than  on  the  hind  margin.  In  this  sjtecies  the  transverst^  posterior 
line  makes  a  very  abrupt  ontward  bend  below  the  costal  spot,  and  the 
line  rnns  in  close  inoximity  to  the  snbterminal  line  for  the  balance  of 
its  course. 

Z.  nihiondis  is  also  gray,  but  yet  smaller  than  the  preceding,  from 
which  it  also  ditfeis  by  tiie  broad,  somewhat  <lit1ase  median  lines,  which 
are  s<'arcely  enlarged  on  the  costa,  the  transverse  jiosterior  regularly 
outcurved,  and  by  the  absence  of  any  dark  shade  to  the  snbterminal 
line. 

Z,  hu'ouspicKalis  is  scan^ely  larger  than  the  jireceding,  with  much 
the  same  markings;  but  it  is  dull,  smoky  brown  in  color,  and  the 
median  lines  are  narrow,  scarcely  enlarged  on  the  costa. 

It  is  jiossible  that  there  may  be  a  closer  r«'lation  between  the  last- 
mentioned  two  species  than  seems  probable  at  juesent.  I  have  only 
two  males  of  /.  iHlitoralis.  and  but  three  females  of  Z.  iiiroiLspicudlis, 
the  latter  not  showing  any  aiipreciable  variation;  but  the  markings 
are  ajiiiarently  identical,  and  the  strong  <lifterencc  in  gnmnd  color  with 
the  relative  distinctness  of  the  median  lines  may  possibly  come  within 
the  range  of  variation  in  this  series. 

Of  all  the  other  species  referable  to  this  genus,  none  excejit  Z.  mini- 
iiuilis  shows  any  trace  (»f  any  costal  enlargement  of  the  median  linins, 


i 


'y^' 


I 


30 


urn 


.LETIN    IH,    UNITED    STATES    NATIONAL    MUSEUM: 


atirl  hero  tlie  jliliifion  is  cxrcnliiijily  slij«hf  iiiid  not  liiil)!.'  f.)  cjiusr  con- 


1^ 


t'nsioii. 

/.  UvriijalH  and  /.  punviifoi'mix  m.v  itrciiliiir  in  tins  sitIcm  by  Mm' 
cliniiictn"  ')!•  tlio  snhlciininiil  line,  w  liirli  is  sininitc.  iind  tiiis  rlianu-tor 
uill  st'ivti  to  (listin^-iiisli  tlu'  lornuT  throuji'Ii  all  its  |»rot,'}in  (•lnin«:t's  of 
i'olor.  Only  one  otinr  (»!'  tlic  Deltoid  sorites  uiMMOiicln's  this  in  viiiia 
\n\\\y—livui((  <li.sroli>r(iliH—iUu\  that  is.  of  «'onis«',  iuipossihh^  to  con 
I'nsr  with  ('itlicr  of  tla^  altovo.  In  .uronnd  color  /.  hrrif/ata  amy  vary 
IVoni  caiiu'ons  yray 


1<»  alino.^t    liiack,  an<l   tlu'  color  may  bo  even  or 
Icry:  the  primaries  may  have  the  median  s|»aee  contrastingly  red, 


l»o\\< 


<»r  brown,  oi"  V( 


llowish,  or  yrav:  or  this  space  may  he  dark,  wliile  all 
els«'  is  contrastinjily  paler.  A  j-oixl  series  of  this  species  is  in  itself  a 
lesson  in  insect  variation,  and  yet  with  all  this  chan«>('  in  e(dor  tln're  is 
practically  no  vaiiation  in  the  markings,  i.  o..  the  course  of  the(M«linary 
lines.  It  isi»rol>alde  that  under  the  teiin  /.  oh.solrto  1  have  redescribed 
an  almost  immaculate  form  of  this  spe.'ies. 

/.  piinvti/oriitiH,  wliich  at  lirst  sijiht  resembles  /.  Uvriijata  (piito 
stroiifily,  has  the  transverse  anterior  line  oiitcnrved,  wl  ile  in  its  ally  it 
IS  ri>;i<l,  and  the  subtei  iniiial  line  is  pale  and  somewh;it  lunulate,  each 
luiiule  preceded  by  a  black  spot,  which  is  inwardly  din'nse. 

/.  olriliiinllti  is  also  distinctive  ill  appearance,  and  is  allied  b>  Z.Uvri- 
f/ata,  th()Uj>h  iiiiich  smaller,  and  proltalily  abundantly  distinct.  It  is 
«'liaraeteri/ed  by  the  inomineiit  black  median  lines,  the  inner  ([uite 
dil'luse,  and  l>y  the  black  shade  prec(diii.u'  the  subterminal  line, 
(rnlbrtuiiately  a  sin.uie  imperfect  si»eciiiien  only  is  known,  and  there 
is  no  information  as  to  whether  we  liaAC  a  normal  form,  or  <me  that  is  an 
extreme  variation.  1  (h'eiii  it  not  unlikely  that  /.  ^rr/r/^f^f may  >some- 
tinu\s  take  on  a  similar  appearance;  lint  do  not  mean  to  sngj;est  any 
specific  relation  betwe(Mi  the  two. 

In  all  the  follow  ii  y  spec'ies  the  subterminal  line  is  evt'H  and  straight; 
usually  it  is  i)ale,  and  in  many  instances  preceded  by  ii  dusky  shade. 

Z.  iK'<(ii)il((lis  is  a  liiteous  j;ray  N.riu  and  dilfers  from  all  it's  neij;lib(us 
in  that  the  siibtenninal  line  is  -!  isivy  and  only  oc<'asionally  followed  by 
a  vaji-ne  paler  line.  It  is  also  ai'oieviated  below  the  apex  and  (b>es  not 
reach  Ihecosta,  lermiiiatini;' in  such  a  way  as  to  make  it  ap[)ear  that 
its  continuation  would  reach  the  extrenu^  tip  of  the  wiiij"',  where  a 
dusky  dot  iiiteiisili(>s  this  impression.  The  transverse  |»osterior  line  is 
usually  (piite  distinctly  anj>ulated  (»ver  the  cell,  and  tin;  transverse 
anterior  line  is  even,  not  denticulated.  The  peculiar  course  of  the 
subterminal  line  adds  to  the  impression  that  the  forewiii};'  is  more 
l)ointe<l  than  is  really  the  case. 

X.  crmudh  is  allied  to  /.  pcdipilalis,  Imt  is  brown,  and  the  .subtermi 
ual  line  is  pah*,  preceded  by  a  distiuct  dark  shade,  reachinji'  the  costa 
without  break.     The  transverse  anterior  line  is  even,  and  the  trans- 
verse posterior  line  less  anuulated  over  tlie  <'ell;  but  it  has  a  more  dis- 
tinct incurve  in  the  submedian  iuters[)ace. 


A    REVISION    OF    TUK    DKLTOM)    MOTUrt — SMiril.  81 

Z.obH('uripv»uiH  is  very  (iIoh  •  to  /.rniralis,  hut  it  is  (linker  iiiid  iihu(» 
ol)snii«'ly  marked.  Tlic  fiMiisvrrso  posterior  line  is  siniiliii  in  ;;eneriil 
coiirsi',  but  is  uiueli  less  evident  ;ind  is  inejiiiliir,  soniewlnit  denlirulate, 
not  even.  These  eliaiiM'ters  aro  readily  noled  and  tlie  nature  of  tlu; 
transverse  posterior  line  is  usually  decisive  ol'the  sp«'eies. 

/.  pnttiiiiinitsal'is,  better  known  as  X.  inlninialit,,  is  another  dariv  spe- 
ejes  nmeli  like  /.  ohm'Htipciuiis  at  lirst  sijjlit ;  but  it  dilVers  in  the  irie}{u- 
lar  transverse  anteri(M' liiu',  and  the  yet  more  denti<*ulated  transverse 
posterior  line,  in  the  charaeter  of  the  transverse  anterior  line  this 
species  dillers  iVcnn  both  /.  finrdli.s  and  /.  oh.srKriitcniiis.  but  ajirees 
with  /.  mtiirifliliiu'ti  and  /.  oclircijwiiniH,  from  wiiicli  it  dilfers  by  its 
sniokv  or  blackish  eoloi'. 

/.  mdrcitliliiicd  and  /.  nchrvifinntis  are  yellowish  or  luteoas  forms  and 
are  v«'ry  elcHely  allied.  Siiperfuiially,  /.  iiKiyciililiiiro  is  smoother,  more 
evenly  colored,  and  the  median  lines  are  less  irrejiulai';  while  in  /. 
r*f7M7v7'<'»»/".>>' the  ve>tit arc  appears  roujuh  and  pow<lery,  there  is  a  dis- 
tinct t«'iideiicy  to  a  darUeiiiii^i  of  the  outer  part  of  the  wiiij;,  and  the 
median  lines  are  more  denticulated,  sometimes,  in  the  transverse  poste- 
rior, almost  erenulated. 

.\N.\i.vsi:s  or   nil';  .si'i;»ii:s  *>\    /.ANri-xiNA  ruA. 

1.  iMcdifiii  lines  diiatiMl  on  tli<>  co.stii.  roriniii^'  nioiu  or  IfSH  proinint'iit  triinigiiliir 

SIM. Ik 2, 

MtMliiiii  lilies  Miiil'iirrii.  not  (liiiileil  on  I  lie  eostii 4. 

L'.  rrihiiiries  with  ,'i   hrow  ii  or  Mark   pateli  at   apex.  Inllowim;-  •'"'  siiliteiiiiiiial 
line;  (  .)stal  patches  at  inception  of  median  lines  prominent;  <;ronnd 

eidor  liitcouH  or  brownish i.n  cuai.is. 

I'rimaries  w  itiiont  a  dark  ajtieal  spot ;  snl)terHiinal  line  simple  oi-  preceded  hy 

ii  dusky  or  Idaekish  shade 3. 

3.  Ashen  yray ;  the  median  lines  sh-nder,  start infj;  from  ohvions  eostal   spots; 

transverse  iiostcriorliiH'  with  an  abrupt  outward  ben<l  lielow  thecosta, 
close  to  and  usually  almost  ])ar,illel  with  sulderminal  line rnr.iiAi.is. 

Ashen  yray;  the  median  lines  broad,  s(»niewliat  ditl'nse,  seareely  enlarji(!d  to 
form  eostal  s]M)ts;  transvcM'se  )iosteriiir  line  evenly  oiileiirved,  innre 
r(Mnote  I'rom  subVerminal  line,  sinnale MiMMtAi.is. 

I'l.il  MUioky  gvny  or  fns(<ms;  median   lines  nariow,  sli;r|itly  enlarjj;ed  at  their 

inception;  trans\<'rse  posterior  line  sinuate inconsi'Ichams. 

4.  Subterniinal  line  sinuate;  all  the  maeiilatinn  distinct. 

Transverse  anterior  line,  rij^id  or  with  a  slij^ht  inward  beml ;  subtenniual 

line  not  marked  by  jirecediuy;  spots i,  i;\  kjaia. 

Transverse  anteri(»r  line  <!veidy  outeurved;  sulitermiual  line  liinulato  as 
well  as  sinuate,  ]ireeede<l  by  a  series  of  black  spots,  whieli  are  inwardly 

dilfuse crx(  TiKoiMiis. 

Sul)terininal  line  riyid  or  nearly  so;  pal(< 5. 

■■"».    Transvi-rse  lines  broad,  ditVnse,  eontriistinu;;  a  blaek  sh.ide  j)recedinj^  the  sul> 

terminal  line ati!II,im'.i,i.i,a. 

Trauss'crse  lines  slender,  narrow,  not  ciuilrastiny; (i. 

(>.  Transverse  .'interior  line  even,  not  dentieiil.att^  or  marked  on   the  veins,  save 

that  there  may  be  an  aujiulatiou  o\ fr  the  eosta 7. 

Transverse  anterior  line  slender,  irreijular,  dentate  or  oiitctirved  in  (be  inter- 
spaces       t*. 


if. 


w 


32 


|{UI.M-:T1N    18,  UNITED    STATES   NATIONAL    MUSEUAI. 


7.  Ti'imsvcrsc  portterio 


I-  lii 


ic  evt 


1),  not  (Iciiticniiito  on  tlu 


Tr; 


ISVtM'SC   l)OSll!r 
SllloliV 


or 


lint!  incjiiilar,  sli^litly  (liMiticnlatcd;  ffionntl  color  dark 


ucdian  lines  oliscnro;  siibterniinal  lino  nunc  coiiirastJuj;. . 


h.  Coliir  iiali'  liitcons;  transverse  ii(>steru>r    line  «| 


OIlSCllMl'INMS 

nili;    aentelv  anuuiatod  over 


tlie  cell 


I'KDII'II.AI.IS 


Color  darker,  vellowisli  brown;  transverse  iiosti'rior  line  sfronyly  bisiiiuate 


)llt(lir\e(l  iiii 


t  liardlv  aiii-nlated  over   tlieeell. 


9.  (Jolor  yeilowish  to  piirply  brown  or  smok 


smaller 


cinitAi.i- 

l'K<»Tt'MNM  SAI.l^ 


Larger;  color  snio 


nbt 


crniina 


.tlily  liiteons,  .'■carcely  powdery;  lines   indistinct  or  lost; 
1  line  usually  <'ontrastin;i',  Jialc,  distinct,  not  j)rcccded  by 


ad 


llSliX'   s 


liade MAltllDtl.lNKA. 


Colo:'  lutecHis  to  oclieidiis,  powdery:  lines  well  marked;  nsnally  a  dnsky 
sliadini;  over  tlic  subterminal  line  and  sometimes  a  ilislinct  ])reccding 
dark  line ocliiiKlPKNMs 

Zaaclognatha  litiualis,  Iliibner. 

ISIS.  lliUmcr,  /utraene.  I.  1),  lij;.  1!».  20.  Hiiiuii.iin. 

ISlti.  Iliiliner,  \  er/eicliniss,  :M(!,  I'Jitiuii.rix. 

1854.  (inenee,  Sj)!  cies  (icneral,  I)(dtoidcs.  "!),  Ililitt. 

185!).  Walker,  ("at.  ib'it.  Mns.,  Ilcteroccra,  \\\.  V.W,  Kitiziiuiit. 

IST'J.  Ztdlcr.  Verb.  k.k.  Zo(d    Hot.  (Jes.,  \XII , -I7:{,  /f(Hc/.»///(///u(. 

lST;i.  (Jrote,  Trans.  Am.  l".ntoiiMiloiiie;il  Soc,  IN',  liOti,  Mcifdcliitia. 

(iioiiiul  color  it  littlicM'  (.'veil  hitooiis  luowii,  vaiyiiiji  in  slii!<,l«'  to  m  »n' 
liileoiis  or  more  tcddisli,  iniiiiitely  ])()\v(1im y.     Head  and  tliorax  concol 
oi'oiis.     IM'iinai'ics  witli  the  oi'dinaiy  lines  niaiked  by  bfow n.  I)laeki.><1i, 
or  black,  (iiiitc  |>voininent  costal  spots,  but  indelinite  or  obsolete  below 
thai  i)oint.     Uasal   line  marked  oidy  on  cost;i  by  a  sin"!"  black   line 
Trau.sx  else  anteiior  line  ]»ronMnent ly  marked  on  the  costa,  but  below 
that  point  traceable  only  by  a  few  black  scales  and  a  sniiill  si)ot  on  the 
median  \('in.  wliicli   is  sometimes  wantiiij^".     Transverse  posterior  line 
marked  by  a  scries  oC  \eniilar  dots,  accompanied  by  a  vaji'tie,  indefinite, 
paler   shade.     Sid)teiiiiinal    liin'   most    prominently  m;irked,   pale,   its 
<'onrse  nciiily  strai.yht;  but  the  line  itself  is  crennlated,  the  ctirves  oiit- 
wiird  and  usually  lilled  inwardly  by  black  dots,  which  are  v;iriably  dis 
tinct,  sonu^times  f()rmin<>-  a  cpiite  obvious  shade  and  occasioindly  disap- 
l)earin.^i\ltoj'-etlier.    .\  Inoken  black  terminal  line, occasionally eliantfin.y 


to  liinnles  ami  sometimes  almost  disappeariii} 


Tl 


le  ape.x  's 


nmrked 


by  an  oval  brown  or  bhick  costal  p;iteli.  Orbicular  :ibsent.  Iieniform 
a  luoreor  less  ]>roiuinent  Itlack  lunnle,  distnict  in  :ill  the  specin;ens  seen. 
Secondiiries  ]»aler  than  the  primaries,  often  shaded  with  blackish  out 
wardly.  crossed  by  an  evt'U,  rather  well delined  black  slmde  line  at  the 
middle  and  ii  more  irreoiilar  pale  line  toward  outer  marj»in.  This  hit 
ter  line  is  marked  in  )»roportion  to  the  dark  sha<lin^()f  this  part  of  the 
win.u  and  is  sometii'ies  preceded  by  a  blackish  slmdc.  There  is  also  a 
narrow  black  terminal  line  intei  rupted  on  the  veins.  IJeneath  more 
powtlery,  the  |)iimaries  smoky,  darker  tlir(ni-;h  the  i-euler,  with  a  dark 


discal  spot,  a  distinct  bhick  extrii  median  1 


line,  the  latter  reproilnced  from  upper  side.     The  secoiul 


ine  iiiid  a  pale  subterminal 


irie 


ii'c  moi'c 


ayish.  more  powdery,  the  maiMilation  of  the  ti})per  sule  rei)roduced. 


A    Ui:V18I()N    OK    TIIK    DI;lt<)11>    Mollis — SMITH. 


33 


but  mucli  luoic  prominently  so.  There  is  also  a  distinct  black  disciil 
lunule.     On  both  win^s  there  is  a  series  of  terminal  linmles. 

Kxj)anse  of  winj^s,  21  to  21  mm.       ((.S')  to  1.12  inches. 

llAiMTAT.— Canada  to  Florida  and  Texas;  Central  States;  New  York 
and  Delaware  in  June;   District  of  Cohind)ia  in  Auj>iist. 

In  the  series  of  specimens  before  me  tiiere  is  litth^  variation,  excei)t 
in  size  and  intensity  of  the  groundcolor.  As  the  huier  «leei)ens  tho 
snnple  markinji's  are  more  relieved,  and  in  such  (tascs  we  note  a  vague 
pale  shade  i?ulicating  the  course  of  the  ordinary  lint's.  In  one  speci- 
men, received  from  Mr.  W.N.  'I'allunt,  Columbus,  Ohio,  the  central 
space  of  the  primaries  is  considerably  jialer  than  the  otlu'r  j»arts  of  the 
wing,  and  in  a  Delaware  specimen  the  terminal  space  is  (juite  obviously 
diirkened. 

)u  this  species  the  lateral  bristles  of  the  male  antenna'  arc  well 
nnirked  aiul  tjuite  long',  and  the  Lhickening  at  basal  third  in\olves  four 
joints.  Of  these,  three  bear  stout  spines  inwardly:  the  two  lower  ami 
shorter  bear  e;ich  "1"  them  two,  of  which  that  nearest  the  tip  is  stoutest, 
while  the  third  and  longer  Joint  bears  a  single  process  basally.  In  the 
female  the  antenna'  are  clothed  with  rough  scales  and  with  scarcely 
prominent  lateral  seta'.  Tl;e  fore  legs  of  the  male  are  furnished  with 
moderate  tuftings  only.  The  cavity  of  the  coxa  is  iilled  by  elongated 
scales.  The  femur  contains  no  evident  tuftings,  while  the  tuft  beneath 
the  tibial  process  is  sparse. 

The  species  is  the  most  common  of  those  ^x'hmging  to  the  lirst  scries 
and  is  re])resented  in  most  collections.  It  is  in  this,  also,  that  we  find 
the  most  marked  tendency  toward  a  bunching  of  the  veins,  arising  from 
the  accessory  cell  of  i)rimaries. 


Zanclogiiatha  theralis,  Wiill«'r. 

1851).  Walker,  Cat.  15rit.  Miih.,  Iloturocera,  \1X,  Sij."),  Hirminia. 
1893,  SiiuMi,  lUill.  r.  S.  Nat.  Miis  ,  11,  '.m),  Mvi/avhuld. 
dcfiplrifalin.  Zellor. 

1872.  Zeller,  Verli.  k.  k.  Zool.  Hot.  Gos.,  XXII,  17.S,  /niirloi/udtha. 

1873.  firotc,  Trai)s.  Am.  Kiitoinol<)i>i('al  Soc,  IV,  liOfi,  Mi'dnrlnjtii. 
185)3.  Smith,  liiill.  II.  S.  Nat.  .Mns.,  tl,  380,  \n\  syii. 

<j;il)Hali8,  Gi()t(!. 
1880.  (Jrote,  Bull.  Bkhi.  Kntomolo.uic.al  Soc.  Ill,  (>"),  Mcfiacln/la. 
I8!i:!.  Smith,  Hull.  V.  S.  Nat.  Mns.,  U,  :'.8(<,  pr.  var. 

(Irinind  cohu-  ashen  gray,  variably  black  powdered.  Head  ai.d  tho- 
rax concolorous.  Primaries  with  the  ordinary  lines  marked  and  the 
median  lines  promnu'iitly  dilated  on  the  costa.  Uasal  line  marked  on 
the  costa  only.  Transver.se  anterior  line  usually  distinct,  single,  almost 
upright,  a  little  outwardly  bent  in  tho  submedi.in  interspace.  Trans- 
verse posterior  line  single,  black,  slender,  usually  <listinct.  al>rui)tly  bent 
outwardly  L)elow  the  costal  sjjot,  thence  crcnulated  and  often  irreg  r, 
yet  as  a  whole  nearly  parallel  with  and  close  to  the  subtermiiial  line. 
Subtenninal  line  iiale,  distinct,  (juite  rignl  in  course,  minutely  «'reiiu- 
7,S(;i>_No,  hS— .*{ 


34 


lUJLLKTiN    18,   UNITED    STATES    NATIONAL    MUSEUM. 


If' 


luted,  the  (uiive.s  directed  iiiwaidly,  and  the  liiu;  preceded  by  a  more  oi' 
less  well-marked  black  shade,  which  is  always  more  distinct  ou  the 
eosta.  A  series  ol"  black  terminal  <l<)ts.  Orbicular  Avanting.  llenitorm 
never  well  marked,  blackish,  iiidelinite,  sometimes  aiuuilar,  never 
entirely  wanting.  Secondaries  more  thiidy  scaled  and  somewhat  paler, 
crossed  by  an  extra  median  dnskyluie,  which  becomes  obsolete  toward 
the  eosta,  and  by  a  pale  extra  median  line,  which  is  emphasized  by  a 
blackish  jnecediny'  shade,  most  marked  toward  hind  an<ile.  Beneath 
whitish,  pi>wdery,  both  winj^s  crossed  by  a  fairly  evident,  sometimes 
]»rominent,  extra  median  and  a  more  faint,  usually  punctifonn,  outer 
dark  line.    A  discal  si)ot  is  also  obvious  on  all  wings. 

lOxpanse  of  wings,  1*0  to  1'2  mnK=O.SO  to  0,S8  inch. 

IlAiuTAT. — Nova  Scotia  to  North  Carolina,  to  Central  States;  New 
Yorii  and  New  Ilampshiiein  -June. 

This  species  is  much  more  rare  than  /.  llturaJis  and  seems  ijielined  to 
be  more  variable.  The  type  of  /.  nypHidia  which  1  examined  in  the 
British  Museum  is  a  j»artially  suffused  specimen  in  which  the  base  of 
the  primaries  is  shaded  witn  ochery  and  the  subterminal  and  tciinin.  .' 
spaces  sprinkled  with  dark  brown.  It  is  not  entitled  to  varietal  ra.ik, 
because  the  ditlerence  is  rather  in  the  nature  of  an  aberration.  The 
male  antenna'  have  the  lateral  bristles  well  developed  and  the  thick- 
ening at  the  basal  third  well  marked,  chietly  by  dense  scales  on  the 
outer  side.  Two  Joints  are  furnished  with  stout,  practically  identical 
spurs,  inwardly.  The  female  antenme  are  feebly  ciliated  (mly.  The 
fore  le}»s  of  the  male  are  prominently  tufted.  The  coxa  has  only  a  few 
scattering  iiafrs,  and  is  not  grooved;  the  femur  is  grooved  on  the  upper 
side,  has  a  tuft  of  scales  at  base  and  a  pencil  of  long  yellow  nair 
attached  at  the  tip.  The  tibial  ])rocess  is  very  broad  and  large,  but 
e<>vers  a  comparatively  small  tuft  of  hair,  the  tufting  of  the  femur 
being  in  this  case  the  most  iin])ortant. 


i- 


Zaaclognatha  minoralis,  new  sixciew. 

Pale  ashen  gray,  with  fuscous  powderings.  Head  and  thorax  con 
colorous.  i'rimaries  with  the  median  spacer  almost  white,  the  basal 
space  and  all  beyond  the  transverse  posterior  line  with  a  fuscous 
washing.  Hasal  line  rather  broad,  diffuse,  extending  beh)w  the  median 
vein.  Transverse  anterior  line  broad,  diffuse,  luscous,  somewhat 
dilate<l  on  the  eosta,  in  course  with  an  even  outcurve,  and  outciirved 
also  between  the  veins.  Transverse  posterior  line  single,  well  defined, 
broad,  scarcely  if  at  all  dilated  on  the  eosta,  with  small  outward  teeth 
on  the  veins;  broadly  oiitcurved  over  the  cell  and  with  a  feeble 
incurve  below.  Subterminal  line  whitish,  rather  obscure,  even,  nearly 
straight  in  course,  precede<l  by  a  fuscous  sJiading,  A  series  of  lunate 
dusky  terminal  s|)ots.  Through  the  outer  ])art  of  the  nuHliau  space 
is  a  vague,  fuscous  mediiin  shade,  crossing  the  leniform.  Orbicular 
wanting.     Keniform  distinct,  rather  small,  oval,  with  a  fuscous  shading. 


A    REVISION    OF    THE    DELTOID    MOTHS — SMITH. 


35 


New 


The 


The 
y  a  few 
upper 
■  iiair 
e,  hut 
lemur 


IX  con 

basal 

useous 

uediiin 

lewliaf 

Mii'veJ 

itined, 

teeth 

feebh' 

iieaily 

lunate 

si)a('e 

Menhir 

ladini;. 


A  soincwliat  diffuse,  broad  median  band,  followed  by  a  subterminal 
abbreviated  wliite  line,  whieli  is  preceded  by  a  dusky  shade,  and  is  best 
marked  toward  the  anal  angle,  bee(miing  obsolete  toward  the  eosta. 
A  distinct,  blackish,  interrupted  terminal  line,  and  a  somewiiat  obscure 
discal  lunule.  Beneath,  whitish,  powdery,  both  wings  with  a  distinct 
discal  lunule  and  a  broad  extra  median  band:  secondaries  with  an 
additional  subterminal  hue,  rei)roducing  more  distinctly  that  of  the 
ui)pei  side. 

Expanse  of  wings  21  mm.      ()..S4  inch. 

llAHiTAT.— Long  Island,  New  York  (probably). 

The  antennie  of  the  male  are  lengthily  bristled  laterally,  and  the 
thickening  at  basal  third  is  well  marked,  principally  by  the  dense  cloth- 
ing of  scales  ou  the  outer  side,  because  only  two  joints  are  enlarged,  and 
each  of  these  bears  a  single,  stout,  pointed  spine,  somewhat  curved  at 
tip,  and  ol  these  the  basal  is  the  weaker,  though  a  little  longer. 

1  have  only  two  male  specimens  from  the  Michigan  Agricultural  Col- 
lege, Avithout  locality  label  of  any  kind,  but  probably  from  theTepper 
Collection,  and  marked  M.  (levcptriadis.  It  is  not  impossible  that  this 
is  a  form  of  M.  invonspicualh,  Grote,  of  which  I  have  seen  no  male;  but 
the  dill'erences  are  suiliciently  great  to  induce  its  description  at  the 
l)resent  time,  to  call  attention  to  the  matter,  though  I  would  not  have 
considered  it  advisable  to  name  it  under  other  circumstances.  The 
course  of  the  lines  is  practically  like  those  of  M.  inconspiciiali.s,  but 
they  are  so  much  more  prouinent  and  so  much  more  dittiise,  while 
the  coloration  is  so  markedly  ditterent,  as  compared  with  its  ally,  that 
[  hesitate  to  consider  them  identical  without  further  material. 

Zauclognatha  inconspicualis,  (iroto. 

188H.  (Jrolo,  Ciiiiii»liaii  Kutomologist,  XV,  30,  Metjac'iuita. . 

Ground  i^olor  an  even,  dull,  smoky-brown  or  fuscous.  Head  and 
iiorax  coucolonms.  Primaries  with  basal  line  evident,  narrow,  exteud 
!  .  to  the  inediau  vein.  Transverse  anterior  line  blackish,  narrow, 
.so oewiiat  dilated  on  the  costa,  curved  in  the  interspaces,  and  with  a 
slight  general  outcurve  in  its  course  as  a  whole.  Transverse  posterior 
lin(^  threadlike,  blackish,  somewhat  dilated  on  the  costa,  denticulated 
on  the  veins,  outcurved  over  the  cell,  and  more  or  less  incurved  beneath. 
Subterminal  line  pale,  variably  distinct,  its  c(uirse  nearly  straight, 
with  very  small  undulations,  preceded  by  a  variably  marked  blackish 
shade.  Orbicular  wanting.  Kenifonn  small,  oval,  blackish,  not  well 
inaiked.  A  broken,  black,  terminal  line.  vSecondaries  slightly  paler, 
with  a  dusky  median  line;  a  pale  or  whitish  subterminal  line,  preceded 
by  a  dusky  shade,  more  evident  near  the  anal  angle,  and  aii  obscure 
dis<'al  lunule.  Ucneath  gray,  fuscous  powdered,  each  wing  with  a 
tlusky  discal  lunule,  a  dark  extra  median  line,  and  a  more  or  less  obvious 
pale  subterminal  line. 

Expanse  of  wings,  1!)  to  L'Omm  =  0.7S  to  0.8L'  inch. 


■!!•'■ 


36 


imLLF/riN    48,   UNITED   STATES    NATIONAL    MU8EUM. 


llAiUTAT.— .Mount  IMjircy,  Adiroiulacks,  New  York,  July. 

The,  only  ssiR'cinions  whicli  I  luivc  sren  Jiic  fciiiiileis,  and  till  of  those 
now  before  n»e  were  taken  by  the  late  Mr.  W.  W,  Ihli,  in  l.S8L»,  and  are 
part  ot  the  lot  troni  which  Mr.  ( Jrott;  obtained  his  types.  They  are  from 
the  collections  of  the  United  States  National  Museum  and  Dr.  J.  A. 
Lintner,  and  I  am  not  aware  of  other  s[)ecimens,  except  in  the  II ill  col- 
lection. It  is  (inire  probable  that  the  species  is  locally  common,  and 
at  all  events  1  can  testify  to  the  abundance  of  small,  obscure  forms  com 
ing  to  light  and  stirred  out  of  the  scant  vegetation  near  the  top  of 
Mount  Marcy,  where  1  spent  a  bitter  cold  night  one  August  more  years 
ago  than  1  care  to  count. 

The  ]»ossible  relation  of  this  species  to  Z.  minoralis  has  been  already 
discussed. 

Zaiiclognatha  laevigata,  (^.rote. 

1872.  Grotc,  Traus.  Am.  Ent<)iii(>lo.!j;i<:il  Sue,  IV,  95,  Hrrminia. 
ISTA.  (iiote.  ISnli.  IStilV.  S(»t'.  Nat.  Sci..  1,  :{i),  /aiirlo;iiiatlui. 
1878.  Cirote,  iJiii;.  I  .  S.  Geol.  Surv.,  IV,  18(),  /.uiivloyiuitlui. 

obKolela,  Siiiilli. 
1884.  Smith,  Bull.  Bkln.  Entimioloijiciil  Soc.  VII,  5.  Xa)i<lo()iialhii. 

Ground  color  varying  from  carneous  gray  to  deei>  red.  leather  brown, 
or  even  bhuikish.  Head  and  thorax  usually  of  the  palest  color  found 
on  the  jtrimaries.  Primaries  witli  the  transverse  anterior  line  upright, 
or  nearly  so,  varying  somewhat  in  direction  and  sometimes  with  a 
small  outward  angulation  on  the  subcostal.  Transverse  posterior  line 
even,  slender,  with  a  bold  outcurve  over  the  cell  and  a  small  incurve 
in  the  submedian  interspace.  Subterminal  line  pale,  slightly  and 
irregularly  sinuate,  eiiii)hasized  by  a  more  or  less  marked 'preceding 
black  shade,  and  sometimes  followed  in  a  similiir  way.  A  series  of 
black  terminal  lunules  varying  greatly  iu  distinctness  and  sometimes 
absent.  Orbicular  present  as  a  distinct  black  spot  in  some  specimens, 
entirely  absent  in  others.  Iteniform  always  ])resent,  but  varying  from 
a  distinct,  black,  kidney-shaped  sjtot  of  good  size  to  a  slender  indefinite 
dusky  lunule.  Secondaries  varying  from  smoky  gray  to  brown  or 
blackish,  Avitli  a  dark  extra  median  line,  a  pale  snbterminal  line,  a 
series  of  bhick  terminal  lunules,  and  a  rather  vague  discal  spot,  which 
is  sometimes  wanting.  r>eneath,varyingfromsinoky  gray  tored  brown, 
powdery,  with  a  common  outer  dark  line  and  a  discal  lunule  on  all 
wings.  In  some  cases  there  is  also  an  incomplete  snbterminal  line, 
best  marked  on  the  secondaries. 

Expanse  of  wings,  27  to  3li  mm.  =  1.10  to  l..")2  inc-hes. 

II AiUTAT.— Canada  to  Southern  and  Central  States;  South  Dakota; 
July  to  August. 

It  has  been  already  indicate.l  that  this  is  an  ex(!eedingly  variable 
si)e<;?s,  and  yet  it  is  always  readily  distinguished,  not  only  by  the 
characters  already  given  in  tlie  introductory  remarks,  but  because  it  is 
really  the  only  one  of  tiie  genus  witli  eoi'trasting  cohmition.     Ten 


A    REVISION    OV    'I'HE    DEI/roID    MOTHS — SMITH. 


37 


selected  specimens  before  iiic  exhibit  a  remarkable  (litl'ereiice  in  appear- 
ance. Unilorinly  colored  s|)ecimens  iire  rare,  and  tlie  extreme  in  this 
<lirection  is  the  type  of  my  Z.  ohsoleta,  a  \'ern>ont  specimen,  which  is 
almost  uniformly  bljickish.  In  some  specimens  the  medinii  lines  become 
dihiise,  and  the  triinsverse  anterior  is  most  usually  so  modilied.  Some- 
tinu^s  th(!  outer  half  of  the  mediiin  space  is  darker  and  sonu'times  the 
median  space  is  uniformly  in  contrast  with  the  basal  aiul  subterminal 
si)a('es,  the  terminal  space  often  varying  imlependently.  <}uite  as 
usually  we  may  have  the  median  space  lighter  than  any  other  parts  of 
the  wing,  and  this  contrast  is  often  very  marked.  The  species  is 
broadei-  winged  than  any  of  its  allies  an<l  has  a  somewhat  moreobli(|ue 
'  ntcr  nuirgin  and  more  perceptibly  arche<l  costa, differing,  indeed,  quite 
obviously  from  most  others  of  its  allies  in  these  respects.  It  is  quite 
common. 

The  antenna'  of  the  male  are  much  as  usual  in  the  genus.  They  have 
long  lateral  bristles,  a  scaly  thickening  of  the  outer  side  at  basal  third, 
marked  by  a.  slight  bend,  and  inwardly  two  of  the  joints  are  shorter, 
stouter,  each  furnished  with  a  thick  pointed  spine  somewhat  curved  at 
ti]).  Occasionally  a  third  Joint  is  involved  and  a  third  smaller  spine 
is  present.  On  all  the  Joints  Jitthis  point  there  are  an  unusual  nundKn- 
of  teatlike  tubercles,  some  with  and  some  without  short  hairs,  and 
these  are  evideiftly  sensoiy  ])rocesses.  They  lessen  in  nund)er  in  both 
directions  from  this  point,  but  more  gradmilly  so  toward  the  tip. 

The  antenna'  of  the  female  are  laterally  ciliated. 

The  fore  legs  of  the  nuile  are  very  prominently  tufted  and  quite 
strongly  modified.  The  coxa  has  a  moderate  tuft  of  long  hairlike 
scales,  those  at  base  much  the  longest,  then  regularly  becoming  shorter 
to  the  tip.  The  trochanter  is  remarkably  elongated  and  nearly  etiual 
to  the  fenuir.  The  femur  is  gioovcd  on  the  upp<*r  side  to  lecoive  a 
brush  of  hairlike  scales  nearly  as  long  as  fenmr  and  irochanter  com- 
bined, an<l  ca|)al>le  of  being  spread  out  faidike.  Th<'  tibial  [U'ocess  is 
very  large  aiul  clothed  with  dense,  long  scales,  which  do  not.  however, 
form  distinc^t  tuftings. 

lu  the  female  the  fore  legs  are  quite  ncnnial  and  the  trochanter  is  not 
in  any  v.ay  enlarged  or  elongated. 

Zanclogiiatha  piuictifoimis,  m^w  sjn-iies. 

(Iround  coloi-  an  even,  carnCvMis  gray.  Head  and  thorax  concol- 
orous,  Prmiaries  with  the  maculatiou  well  defined.  Uasal  line  narrow, 
Itrown,  marked  on  the  costa  <nily.  Transverse  anterior  line  narrow, 
brown,  irr«'gnlarly  outcurved,  and  witli  uneven  ontcurves  in  the  inter- 
sjiaces.  Trans\erse  [)osterior  line  narrow,  brown,  rather  regularly 
bisinuate,  a  little  marked,  but  hardly  denticulate  on  the  veins.  Sub- 
terminal  line  sinuate,  irregular,  pale,  lunulate,  the  lunules  (Mnjjhasized 
l»y  a  series  of  preceding  black  s))(|ts,  which  are  inwardly  diffuse.  A 
series  of  black  terminal  <lots  on  tlic  veins.      The  nuler  ))art  of  the 


38 


nULLETIN    J8,  INITED    STATES   NATIONAL    MUSEUM. 


Ir  :i 


iiic'dian  space  is  shaded  with  brown,  the  tint  becoming  obvious  below 
the  renifoiin.  Orbicular  wanting  in  the  specimen.  Keniforn  large, 
oval,  brown,  with  a  blackish  defining  line.  Secondaries  more  luteous, 
paler  basally,  with  a  feebly  marked,  dusky  extra  median  line,  an  irreg- 
ularly dentate,  i)ale  snbterminal  line,  i)re<'eded  by  darker-brown  s])ots, 
and  a  narrow,  black,  iuterriii)ted  terminal  line.  Ueneath,  all  wings 
with  adiscal  lur.ule,  a  dusky  extra  median  line,  and  a  pale  subterminal 
line,  which  is  preceded  by  a  darker  shading. 

Expanse  of  wings,  129.5  mm.  =:^  1.28  inches. 

llAniTAT. — District  of  Colnnd)ia. 

A  single  si)ecimen  only,  from  the  United  States  National  Museum, 
''Collection  C  V.  Kiley."  The  species  very  strongly  resembles  Z.  hvvi- 
(jaia  in  general  appearance,  and  with  this  it  was  associated  in  the 
Museum  collection,  though  with  a  query.  The  specimen  is  defective 
and  badly  mounted,  but  seems  to  have  been  bred,  and  bears  the  number 
"2r)85,  April  17,  '82." 

It  is  readily  distinguished  from  Z.  kvvuiatn,  \y\\\c\\  it  most  resembles 
in  superticial  appearance,  by  the  uneven  transverse  anterior  line  and 
by  the  chai  acteristic,  lunulate,  pale  subterminal  line,  emphasized  as  it 
is  by  the  i)rominent  preceding  bla(;k  spots. 

The  antenna^  of  the  male  do  not  differ  in  any  essential  feature  from 
those  of  Z.  la'vi{fai((,  and  there  are  two  modilh'd  Joints,  Avith  rather  evenly 
curved  stout  spines,  while  the  curve  or  bend  in  the  antenna  below  the 
scaly  thickening  is  slight. 

The  forelegs  differ  very  decidedly,  however,  and  first  in  the  relative 
length  of  the  trocihanter,  whi(!h  is  proportionately  very  much  shorter 
and  does  note(|ual  one-fifth  the  length  of  the  femur.  The  tuftings  seem 
to  be  much  the  same  in  character,  but  are  much  less  prominent,  the  hair 
much  less  scalelike  and  not  so  much  enlarged  at  the  tips.  The  enlarge- 
ment of  the  tibial  ])r()cess  is  much  less  evident,  and  indeed  the  entire 
foreleg  is  very  de(!i(ledly  shiorter. 


Zaiiclognatha  atrilineella,  <hoto. 

1873.  Grotc,  Trans.  Am.  Entoniolof^iciil  Soc,  l\\  'M)l,  Chptomiia. 
"  Pale,  testaceous,  brownish.  Primaries  crossed  by  three  black,  broad, 
distiiu't  lines.  The  transverse*  anterior  even,  perjiendicular,  broad.  The 
tiansve've  jiosterior  narrow  superiorly,  exserte<l  slightly  beyond  the 
disk.  ,\here  it  is  slightly  nu'dially  notched,  more  broadly  marked  below 
the  submedian  nervnre,  even.  Subterminal  lim>  very  broadly  black, 
the  subterminal  space  deepening  in  cohu'  to  the  line,  followed  by  a  very 
pale  shade  (as  are  the  first  two  lines),  even,  a  little  inwardly  arcuate, 
arising  on  costa  before  apex  and  reaching  the  internal  margin  within 
the  angle.  Terminally  the  wing  is  daiker,  more  brownish.  Hind 
wing  a  little  paler,  crossed  by  two  ill-defined  darker  shade  bands.  On 
primaries  a  relatively  large,  rounded,  black  discal  spot  in  the  place  of 
the  reniform.     Beneath  jtaler,  with  double  common   lines,  the  subter- 


A    REVISION    or    THF.    DRLTOII)    MOTHS — SMITH. 


39 


miiinl  marked  toward  wstu  on  both  wiiij>s  and  discal  dots.  Body  parts 
ratlier  pales." 

Expans*'  oi'  wings,  22  min.  —  0.88  inch. 

llAHiTAT.— Texas,  lielfraye,  April  27. 

The  above  is  Mr.  (Irote's  orifjinal  deserii)tion,  and  it  agrees  veiy  well 
with  a  specimen  in  the  <'ollection  «d"  the  American  Entomological  Soei«'ty 
whieli  is  almost  nndonbtedly  the  type.  Mr.  Grote's  descrii>tion  of  the 
genus  Cleptomita  also  agrees  with  the  tyi)e,  one  tore  leg  of  which  is 
separated  and  mounted  on  a  card  labeh'd  "  C7r7>^>/>Vr< "  in  his  hand- 
writing. Unfortunately,  tlu' description  api)lies  equally  well  to  other 
species  of  Zanc}(njnaih((,  and  the  characterization  of  the  fore  leg  shows 
that  Mr.  Chote  did  not  realize  the  nature  of  the  structure  examined. 
J  have  i.ut  seen  a  second  specimen,  and  can  add  nothing  on  the  stru(!- 
tnre  of  the  anteinne  save  that  the  male  has  the  usual  thitjkening  one- 
third  from  base.  The  tuftings  of  the  fore  leg  seem  to  be  conlined  to 
the  femur. 

Zanclognatha  pedipilalis,  (iiienoe. 

1851.  (Jnenoe,  Species  (•eiieral,  Deltoides,  57,  llcrminia. 

18.")!).  Walker,  Cat.  Urit.  Miis.,  Hetentcerii,  XVI,  57,  Ifcnii'niiti. 

1872,  (Irotc,  Trans.  y\m.  Kntoinolo'j.ic'al  Soc,  IV,  0(5,  Hermhiht. 

1873.  Grotc,  Bull.  HiiH'.  Soc.  Nat.  Sci.,  I,  ;«>,  ntnolila. 

(Iround  color  a  very  i)ale,  greenisli,  luteons  gray,  liiieiy  powdered. 
Mead  aad  thorax  concolorous.  Primaries,  basal  line  absent  in  all 
the  specimens  1  have  seen.  Transverse  iiterior  line  narrow,  even, 
brown,  with  an  easy  outward  angle  on  the  subcostal  and  thence  nearly 
upright  or  with  only  a  feeble  outcurve  to  the  hiiul  margin.  Transverse 
l)osterior  line  narrow,  even,  brown,  stiongly  exserted  over  the  cell  or 
sometimes  subangulated,  then  inward  and  somewhat  incurved  to  the 
inner  margin.  Sul)termiual  line  narrow,  even,  brown,  often  followed 
by  a  narrow,  more  or  less  (complete  i>ale  line,  exten<ling  from  apex  with 
a  feeble  incurve  to  the  inner  margin  well  witliin  the  anal  angle  and 
usually  interrupted  Just  below  tlie  apex,  so  the  line  ])roper  seems  to 
start  from  veins  7  and  8  and  to  have  no  connection  with  the  apical  mark. 
A  slender,  usually  continuous,  terminal  line.  Orbicular  wanting.  Keni- 
form  varying  from  a  dot  to  a  narrow  dusky  lunnlc.  Secondaries  paler, 
'ess  densely  scaled  than  primaries.  There  is  a  slender,  threadlike, 
dusky  extra  median  line,  which  is  almost  rectangularly  bent  near  the 
anal  angle.  There  is  also  a  similar  subterminal  line,  followed  by  a 
whitish  slnnle,  less  abrui)tly  bent,  almost  above  the  anal  angle.  A  nar- 
row, brown,  continuous  terminal  line  and  a  vaguely  visible  discal 
hinule.  lUMieath,  more  whitish  gray,  often  with  rather  (coarse,  reddish 
powderings,  with  a  common  extra  median  dusky  line,  a  similar  sub- 
terminal  line,  followed  by  a  ])aler  sliade  and  a  dark  discal  lunule.  The 
lunules  and  the  outer  line  aie  variable  and  sometimes  wanting  on  one 
or  both  pairs  of  wings. 


■■• 

•! 

l& 

■:  *•-' 

■'  n 

..  wi! 

■-  f' 

■s 

i 

■ 

4 

JJ 

■  t  iryi^jf  '  ,^     . 


40 


miLLETIN   48,  UNITED    STATES   NATIONAL   MUSEUM. 


if: 


Expansi!  of  wings,  24  to  .'JO  nini.=(>.i>.")  to  l.L'O  iix-lu's. 

llAiUTAT.— Middle;  and  Central  States;  Virj-inia,  New  York,  and 
Missouri  in  .Mine;  Deliiware  in  ]\Iay;  District  of  (Jolninbia  in  August. 

A  very  interesting  and  not  um'oninion  species,  wliieli  varies  witliin 
narrow  limits  only.  The  ground  color  ditlers  sorn«'wliat  in  intensity, 
the  angle  of  tin-  transverse  posterior  line  is  sometimes  marked,  some 
times  rounded,  and  sometimesa  broad  curve;  the  subterminaJ  line  may 
be  more  or  less  abruptly  teiininated  belo\v  the  apex,  and  the  wing  form 
may  be  more  or  less  pointed,  or  api)arently  so. 

There  can  be  no  mistaking  this  form  in  any  case,  and  the  course  of 
tiie  snbterminal  line  in  tin;  primaries  is  quite  unicpie  in  the  genus. 
I  would  liave  been  strongly  temi)ted  to  adopt  Mr.  (Irote's  genus  could 
J  have  found  any  reasonably  suHicienr  struc^tural  characters. 

Tlie  antenme  of  the  male  are  lurnished  with  rather  slender  lateral 
bristles,  and  the  enlargement  at  basal  third  is  not  prominent,  the  curve 
slight.  Two  Joints  are  somewhat  shortened  and  nuu'e  robust,  and  are 
each  furnished  with  an  unusually  long  and  slender  pointed  i)rocess. 

The  lore  legs  of  the  male  are  after  the  usual  tyi)e.  The  coxa  is  slen- 
der, grooved  above,  with  the  cavity  filled  with  ehmgated  scales  not 
forming  a  tuft  or  pencil.  The  trochanter  is  about  one-third  the  length 
of  the  lemur.  The  femur  is  furnished  on  the  underside  \\\X\\  elongated 
scales,  massed  at  base  into  a  loose  tuft  of  a  black  color,  but  not  form- 
ing anywhere  a,  distinct  pencil.  The  tibial  ])ro{tess  is  large,  and  covers 
a  very  dense  mass  of  elongated  black  scales,  forming  no  obvious  i)en- 
cil,  but  giving  the  api»earance  of  such  at  Hist  sight.  The  species  is 
thus  characterized  by  a  lack  of  distinct  pencils  of  yellow  hair  and  by 
the  fact  that  the  specialized  clothing  is  on  the  under  rather  than  the 
ui)per  side  of  the  femur. 


\ 


Zaiiclognatha  cruralis.  ( Jiienro. 

ISi")'!.  (iiicnte.  S]ioci<'s(i(>ncral,  Uehoides.  r)S,  Hennniia. 

lH.-ji).  Wiilkcr.  Cat.  I$iit.  Mus..  Ilcterocma,  XVJ,  108.  Hominia. 

1S71\  <ir()t(!,  Triinw.  Am.  EiifonKilojjicnl  Soc,  IV,  !t7,  Hcniihiin. 

1S7;5.  (irotc,  Hull.  Bnir.  Soc.  Xnt.  Sci.,  I, :«).  Ztnichu/iiittha. 

Jiicchiisalh,  Walker. 

iSf)!).  Walker,  ("at.  l?iit.  Mus,.  lloteroeera.  XVI,  101,  llevmlnia. 

ISOIi.  Sinitli,  Hull.  U.  S.  Nat.  MuH..41,;Wi.',  i.r.  syii. 

(iround  color  a  rather  dark  liiteous  brown.  Primaries  with  the  usual 
lines  well  marked  and  even,  not  dentumlate  or  erenulate.  Basal  line 
wanting  m  the  specimims  before  me.  Transverse  anterior  line  distinct, 
brown,  a  little  oiitcurved  or  bent  on  the  costal  vein,  thence  quite  evenly 
or  with  a  feeble  out<-urve,  to  the  inner  margin.  Transverse  posterior 
line  slender,  brown,  broadly  outciirved,  sometimes  subangiilated  over  the 
cell  and  quite  markedly  incurved  below;  sometimes  the  line  is  quite 
evenly  bisinuate.  Suhterminal  line  (piite  i)roinineiit,  consisting  of  a 
narrow  i)ale,  preceded  by  a  broader  brown  shade  line,  which  occasion- 
ally absorbs  its  lighter  companion.     In  course  it  is  <[uite  rigid  from  the 


A    KKVISION    OF    THK    DELTOID    MOTHS SMITH. 


41 


costa  well  before  the  iipex  to  the  inner  marj^in  well  within  the  anal 
iingle.  A  blackish,  terminal,  dotti'd  line  on  the  veins.  Orbu'ular  waiit- 
intj;  reiiifonn  snniU,  a  brown  line  or  Innnle.  Secondaries  somewhat 
paler  than  primaries,  with  a  rather  va^^iie,  often  obsolete  discal  liinule, 
a  somewhat  indistinirt  extra  median  dark  line,  whieh  is  snbangnlate 
toward  the  inner  mar};in,  a  more  distinct  snbterminal  blown,  followed 
by  a  yellowish  lim^  and  a  narrow,  dark  terminal  line.  Ueneath  ]>aler, 
powdery,  all  winys  with  a  blackish  discal  spot,  a  rather  well-marked 
extra  median  lino,  and  a  variably  distifict  snbterminal  line,  which  is 
olten  followed  by  a  ])ale  shade  line. 

Expanse  of  winjis,  2r>  to  L'8  mm.       1  to  l.ll*  iin'hes. 

IlAiMTAT. — Nova  Scotia  to  Virj>inia;  Central  States;  Xew  .Mexico; 
New  York;   Illinois  and  I)istri(;t  of  Oolnmbia,  .Inly  and  Auynst. 

The  type  of  Mr.  Walker's  species  is  the  same  as  the  /.  cninilisiA'  t\w. 
(irote  collection,  which  I  believe  to  be  correctly  determined.  The  Z. 
em  rails  of  Walker  is  the  Z.  hcrii/tiia  of  Mi-.  (Irote. 

This  species  is  quite  common,  and  is  very  little  subject  to  variation. 
In  its  markings  it  is  v(;ry  like  Z.  prdipiltdis  except  as  to  the  snbterminal 
line,  and  it  has  the  same  tendency  to  form  an  anjiulation  in  the  trans- 
verse posterior  line  over  the  cell.  Small  speciimMis  which  are  a  little 
rubbed  may  be  easily  confused  with  Z.  ohsciinjminis,  which  differs  mainly 
in  the  denticulated  transvers<'  ])osterior  line. 

The  antenna'of  the  male  iire  after  the  usual  type;  but  the  bend  at 
basal  third  is  much  mor«^  prominent,  and  beyond  it  the  Joints  are  more 
slender  than  toward  the  base.  Two  joints  are  furnished  with  <!orneous 
pro(;esses  which  are  very  stout  and  pointed,  and  when  at  rest  Join  at 
the  tip  so  closely  as  to  ai)pear  like  a  single  heavy  process  at  that  ])oint. 

The  fore  legs  of  the  male  are  well  furnished  with  tuftings.  The  coxa 
is  grooved  and  furnished  with  an  imi)erfect  pencil  of  slender  scales 
attaclu'd  at  and  near  the  base.  The  trochanter  is  rather  more  than 
one-fourth  the  length  of  the  femur.  The  femur  is  grooved  on  the  upper 
side,  furnished  with  a  tultof  elongated  black  scales  at  the  base,  and  at 
the  til)  with  a  pencil  of  long,  tlattened,  yt^llow  hair,  which  may  be  spread 
fanlike.  The  tibial  process  is  very  large  and  covers  a  <lense  mass  of 
blackmh  scales  whicdi  are  elongated  without  forming  a  distinct  brush  or 
pencil,  an<i  are  not  <'apable  of  fanlike  expansion. 


Zanclognatha  obscuripeunis,  CJroto. 

1872.  Grotc,  Trans.  Am.  Kntoiiiolojiiral  Sor.,  IV,  ;{(»!»,  Ilrrmiuia. 
187a.  Grot«^  Bull,  liiitl'.  Soc.  Nat.  8ci.,  I,  :'.!•,  Xanilofiiitillia. 
1893,  Smith,  Hull.  II.  S.  Nat.  Mti.s.,  H.  :W2,  XatirlnniKtlha. 

Grouml  color  a  purplish  smoky  brown,  raiely  varying  to  a  reddish 
shade.  Primaries  with  the  uiaculatiou  obscnr(\  liasal  line  wanting. 
Transverse  anterior  line  fairly  distinct,  bent  over  the  costa  and  nearly 
straight  beh)w  this  point.  Transverse  i)osterior  line  slender,  thread- 
like, obscure,  often  partly  obsolete,  more  or  less  obviously  but  always 


42 


IIULLKTIN    IS,  UMTKI)    STATKS   NATIONAL    MUSKUM. 


ft'cblyiU'iiticuliirc:  m  (!<>iirso,l»isiiiuiil<',out(!iirv(Mlov(Mtli(M!('lI,iiHMnvtMl 
l»iiiciilli.  Siibtcniiiiial  line  rijuMl.  pale,  iHi'i'edcd  by  a  brown  sliiulo 
wliu'li  is  inwardly  (lilViisc.  A  scries  of  black,  v«'nnlai',  ti'iiniiial  dots. 
Orbicniar  wanlinj^.  Ivcnilbiin  a  very  obscnrc  dusky  hmulc,  which  is 
Homctinics  baicly  tra('cal)lc.  Secondaries  more  powdery  and  somewhat 
paler  than  primaries,  with  an  obscure  dnsky  extra  median  line  and  a 
more  cMdcnt,  sometimes  even  well  marked,  pale  subterminal  line. 
There  is  also  a  slender  dark  terminal  line,  followed  by  a  yellowish  line 
at  the  base  ot  the  frin<;es.  and  occasionally  a  vaj^iie  disi-ai  lunnle. 
Beneath,  more  jiiay  and  (piite  coarsely  powdery.  All  wiiijus  with  a 
discal  spot,  a,  well  marked  extra  median  line,  !in<l  a  variably  distinct 
pale  subterminal  line,  whi(di  is  more  fre(juently  wantiujuf  on  the  pri- 
maries. 

Kxpause  of  wiiiRs,  I'l  to  -.")  mm.  =  0..S1  to  1  inch. 

FIAHITAT. — New  York  to  Alabama;  District  of  Cidumbia,  in  Auj^ust. 

This,  so  far  as  the  siyecimens  before  me  indicate,  is  a  very  constant 
species,  liable  to  be  confused  witli  Z.  cnirdlis  and  /.  miiiimtilin.  From 
the  latti'r  it  ditfers  in  tlieri<>id  Iransverse  anterior  line;  from  the  former 
in  the  purplish  f>r:)und  color  and  generally  obscure  maculation,  the 
transverse  posterior  line  tendinj«-  to  become  obsolete,  wlule  it  is  Usually 
somewhat  irre}>ularly,  thoufjh  feebly,  denticulated.  The  subterminal 
line  is  ])re('cded  by  a  brown  shade,  rather  than  a  line,  and  these  char- 
acters, with  the  decidedly  smaller  averafic  size  will  enable  the  species 
t()  be  recojjni/ed  in  most  instances.  Most  <)f  the  specimens  before  nie 
are  from  the  United  States  National  Museum,  '•collection  C.  \'.  Kiley," 
and  bear  his  record  number,  i*S()7,  and  dates  ranj-ing'  from  ;Vujj:ust  7 
to  17. 

In  the  structure  of  the  male  antenna'  and  fore  lef»s  this  species  resem 
bles  /.  cninilis  closely,  and  in  the  latter  character  indeed  no  essential 
difference  lias  been  noted.  The  characters  of  the  antenme  are  some- 
what "utensitied,  however— that  is,  the  bend  is  more  marked,  the  joints 
beyond  more  slender,  while  the  corneous  ])rocesses  are  heavier,  and  a 
third  joint  is  otten  involved,  also  furnislie<l  with  a  jirocess.  Otherwise 
no  notable  ditference  has  be<Mi  made  out. 


11 


Zavclognatha  piotiimnosalis,  Walker. 

isr.ll.  Walker,  (at.  I'.rit.  Miis..  Ilctcnxcra.  X\\,  loj,  Ilrnniiiia. 
IS!);!.  Sniitli,  Mull.  I".  S.  Nat,  Mas..  II,  ;!s:{.  /niiclof/ualha. 

iiiiiii)ii((lis,  ( irotc. 
\X1X.  (irotc.  Unll    r.  S   (icM.l.  Sniv..  I\'.  ISii,  Zanvlofinittha. 
ISitl.   Siiiitli.  last  l-oiiidoptcra,  (;:{,])!•.  syii. 
18!):$.  Smith,  r.nll.  V   S.  Nat.  Mns.,  II,  ':?8:{,  j,r.  syu. 

Ground  color  varyiii'--  from  luteous  to  jmrplish  smoky  brown.  Head 
and  thorav  concol'/ioiis.  Primaries  with  all  the  maculation  usually 
obscure.  P>asal  line  traceable  on  the  costa  in  some  specimens,  usualh 
obsolete.  Transverse  ant«>rior  line  slender,  brown,  evenly  but  noi 
strongly  outcurved,  with   moderate  ontwanl  aiijiulations  between  th. 


A    KEVISIOX    or     liIE    DKLTOII)    MOTIIS — SMITH. 


43 


veins.  Tiansversc  posterior  line  sIoiuIit,  brown,  slij-htly  more  marked 
on  the  costa,  as  is  also  the  transverse  anterior  line;  in  <-ourse  somewhat 
irregularly  bisinnate,  more  or  less  distinctly,  but  always  obviously, 
denti<'nlate  on  the  veins.  Snbterminal  line  rij;!*!,  )»ale.  moio  oi  less 
nnirked,  rarely  conspicjuons,  not  detined  by  darker  line  or  shad<^  A 
series  of  black,  veiiidar,  terminal  dots,  Oibiculai  wanriny.  Ifeniform 
an  oval,  mor*;  or  less  obscure  blacl;ish  spot.  Secondaries  i)ale,  dirty 
InteoTis,  ]»owdery.  A  vaj^ne,  extra  median  <lark  line,  which  is  sometimes 
obsolete;  and  a  bettCM-  marked,  sometimes  (piite  prominent,  pale  sub 
termnial  line,  in  continuation  of  tluMiorrespondinj;  line  of  the  i)rinuvries. 
A  Itrokeu,  blackish,  terminal  line.  IW'ueath  i)aler,  more  yray,  pow<lery; 
all  wiuf^s  with  adis(;al  spot,  a  dusky  t^vlra  nuMlian  and  pale  subternunal 
line,  varying  in  prominence  and  sometinu's  almost  immaculate 

I'^xpanse  of  wiuRS  24  to  liG  mm.  =().!)<»  to  l.Oa  inches. 

Habitat. — Canada  to   l)istri<'t  of  Colund)ia;  New  York   in  .Tidy. 

This  species  isfpiite  usually  confused  with  Z.  ohsvuripciniis  or  even  Z. 
criindis,  dillerinj"  from  both  by  t>e  aii<4ulated  transverse  anterior  line 
of  tli(^  primaries.  I  have  only  live  specim«!iis  before  me,  bom  as  many 
localities,  iiidicatiii;.^-  rather  an  inu-ommon  form.  Of  these,  four  are 
luteou8,,like  the  ty|)es  in  the  liritish  Museum,  and  ditfer  only  in  the 
relative  promiMcnce.  of  the  reniform;  while  one  specimen  without 
detinite  lo<'ality,  but  probably  from  Loujl'"  Island,  N.  Y.,  is  of  a  very 
decided  i)urplish  brown,  with  a  stron<«ly  contrastinj^'  subterminal  line. 
It  is  ))ossible  that  we  hav<>  to  do  here  with  a  diH'ereiit  species,  but  tlu^ 
material  is  not  -  ullicient  to  deiMde  the  (piestion.  As  has  been  indicate*!, 
the  types  of  Z.  protiimiiosalis  and  Z.  iuiiiim((li.s  are  of  the  liiteous  form. 

In  the  male  characters  this  spe<!ies  is  \ery  like  Z.  ohncnripnmis, 
especially  in  the  antenme,  in  which  three  joints  are  quite  fjenerally 
fiirnislu'd  with  (corneous  ]>rocesses,  the  third  or  up])erde(!idedly  smaller 
than  the  others. 

Zauclognatha   marcidilmea,  (trnto 

1X72.  (Jroto,  Trans.  Am    Kiitoiiioloyiciil  Sric,  I\',  Jl.'i  ;ni(l  :!0!»,  Tfrrmiuin. 
IST'J.  (trotc,  Hull.  r.iilV.  Soc.  Nat   Sci,,  I,  H9,  '/.nnvln<iuiilh.t. 

Ground  color  luteoiis,  with  line,  even,  ocheroiis  powderinys.  Head 
and  thorax concidorous.  Primaries  with  the  median  lines  very  slender, 
tending  to  obsolescence.  Basal  line  waiitin*;.  Transv<'rse  anterior 
line  (piite  evenly  outcurved  ami  with  moderate  outcurves  in  the  iiiter- 
s|)aces.  Transverse  i»osterior  line  iri'e<i,ularl\'  bisinuate,  with  moderate 
"lenticulations  on  the  veins.  Subterminal  line  pale,  rif>id,  not  detined 
by  dark  lines  or  shades.  A  series  of  venular  black  terminal  dots  or 
luniiles.  Secondaries  i)aler  than  the  primaries,  wit'h  a  very  feebly 
marked,  dusky,  extra  median  line,  and  a  more  distinct,  pale  snbterminal 
line.  An  interrupted  brown  terminal  line.  lieneath  jiale,  luteous 
gray,  with  oeherous  powderiuys.  .\11  wins's  with  a  discal  spot,  a  brown 
extra  inedian  and  a  pale  subterminal  line,  and  all  variably  evident, 
sometimes  nearly  obsolete. 


'-  • 


-*■ 


44 


lUJI.LKTIN    IH,    IINITKI»    STATKS    NATIONAL    MUSEI'M. 


Hxpaiisr  ol  win^iM'a  to  :«)iiiiii.  =  l  to  !.-'<>  iiu-lies. 

liAinTAT.— NortluMii,  .Mi(l(II(',iiii(l  ('riitriil  States,  soiitii  to  Alaliamii; 
New  York,  .Inly  to  S«'i>l«'nili<'r;  Drljiwaic  in  .Inly. 

Tlu^  aiitcima'  ar«  loiiju'cr  and  iiion-  sicndn-  tliaii  in  tlio.  .sixM-ics  iinnic 
dialrly  ]n«'<(Mliny,  and  tnon*  as  in  /.  Uvriijaln  and  /.  prflipilnlis;  tin- 
lateral  bristles  Innjjer  and  more  slender.  Tlie  bend  at  the  basal  third 
is  well  marked,  and  two  Joints  are  Inrnished  with  processes  whieh  are 
<',nrved  and  pointful  at  tip.  The  tnftinfrs  of  the  fore  !('«:«  iirc  prominent. 
The  coxa  has  a  i)encil  of  hair  like  s<'ales  attaehed  near  base.  The 
troehanter  is  one  third  as  Ion}*'  as  the  t'ennir.  Tlu^  feinnr  has  a  tuft  ol 
elonjiated  black  scales  at  base  and  a  pencil  of  y«'llow,  hair  like  scales 
attached  at  tip  and  capable  of  fanlike,  expansion.  The  tibial  process 
is  larji'c,  and  the  scaly  clothin^j;  is  dense,  forming-  no  distinct  pencils. 

Zanclognatha  oclireipennis,  firitt<i. 

1872.  (irotc.  Trniis.  Am.  Kiitotiiolouicnl  Soc,  IV,  its.  Iln-miuia. 
187:i.  (Jrotf.  l?iin.  I'.iilV.  Soc.  Nut.  Sri  ,  I,  :t!t,  /iiii<lo(iiiitlli<i. 

(iionnd  color  liiteons  with  dt'  ise,  coarse, ocherons  |)ow«leiin}js.  Head 
and  thora.x  concfdorons.  Primaries  with  the  median  lines  brown, 
nsually  well  marked  and  broad.  Transverse  anterior  line  ontwardl.v 
cimvex  as  a  whole,  with  variably  marked  outcurves  in  the  ii  ""vspaccs- 
Transverse  r.isterior  lin(^  irrcjLiularly  l)isinuate.  ontwardly  ^i<'ulate 
on  the  veins.  Snbternunal  line  rij;;.l,  ]»ale,  usnally  prominei..,  ^»  nei'ally 
(h'Tined  by  a  i)rcccdin<.j'  brown  shade  line,  whicli  occasionally  forms  the 
moreobvions  |)ortion  of  the  line.  A  seiies  of  black  terminal  Innnles  or 
dots  (HI  the  veins.  Secondaries  ])ale  luteons  grr.y  to  smoky,  with  a 
variably  <letined,  sometimes  (piite  distinct,  extra-median  dark  line,  and 
a  distinct,  sometimes  ])romineiit,  pale  subtei'ininal  line,  w  hich  is  often 
preceded  and  detincd  by  a  darker  sjiadin^i'.  A  black  or  brown,  inter 
rnpted,  terminal  line.  Ucneath,  paler,  coars«'ly  powch'red,  all  wings 
with  a  discal  spot,  a  d-.vrk  extra-median  and  pale  snbterndnal  line,  the 
latter  sometimes  preceded  by  a  daiker  shade  line. 

10xpans(^  of  wings,  li7  to  .'>L'mni— 1.10  to  1.30  inches. 

Habitat. — Canada  t()  \'irginia.;  Central  States;  Colorad.o.  Canada 
in  .Inly^  New  York,. Inly  to  SeptembtM-;  Illinois.  .Inly  and  August; 
l)istri(  oof  (Columbia  in  August. 

Tliit;  species  and  Z.  marcidilinea  are  very  nnsatisfactcnily  distin 
guished;  yet  they  seem  to  be  good  sp(!cies.  Such. differences  as  exist 
are  comparative,  and  are  obvious  only  in  fairly  good  si)ecimens,  becom 
ing  more  or  less  lost  when  they  are  rid)bed.  As  a  whole,  Z.  mareUlHuun 
averages  smaller,  is  nnndi  more  even  in  color,  with  less  tendency  tc 
(Mtherous;  the  median  lines  are  decidedly  narrower  and  much  less  dis 
tinct,  tending  even  to  obsoles(;ence,  ])articiilarly  in  the  transverse 
posterior  line;  and  the  subterminal  line  is  rarely  <letined  by  a  darkei 
shade  line.  Z.  orhrcipoinis  is  coarsely  powdered  as  a  rule,  of  a  brighter, 
more  intense  gnmiul  color,  varying  to  a  much  darker  shade;  (piit( 
n.snally  becoming  darker  terminally  and  relieving  the  nnu-e  pronnneiii 


A    ICliVlSlON    OF    TliK    I>KLT(>11>    Mn'UlW — SMITH. 


45 


■,Ml»t<'rmiiial   Him',  which    is  iVc(|iu'iilIy  pn'<-o<h'(l   hy  w  «hiilv  Miit'.     Tho 
iiit'diiiii  hiu's  iiic  not  Ihn'iid  likr,  iir.'  iisiiiilly  well  iiiiirkcd,  iiiid  ol).s<'iir('il 
Lilly  in  vciydiirk  spciinKMis,     \vt  wilhiil  thtMlincit'iuH'siiic  unsiitistUc 
tory,  jukI  stiiictiiral  charjicti'i's  do  not  liclp  us  innch. 

The  loir)cj;H  sirii  pnicticiilly  as  in  /.  iimrcidilinra,  save,  that  tho 
tiochantrr  is  somewhat  shoittT  and  aljont  ono  lonrth  the  U'riytli  of  the 
Itinnr.  Tlie  aidi'iina' are  somewhat  shoiter  and  stonter,  and  t lien!  i8 
often  a  third  Joint  fitniished  with  a  s[)inons  process.  I<]|se  I  lind  no 
iiotabhi  dilleieiices. 


Genua  H  O  R  M  I  S  A,   W: 


Jiiuer. 


IS.')!!.   WiilluM-,  Cut.  I!nt.  Mii«.,  lleUMocciii,  XVI,  71. 

Litoijmtlliii,  (iioto. 
1H7;}.  (.roll-,  null.  Hull.  Soc.  Nut,  Sci..  I,  K,. 

I'ull.icliint,  (Jroft! 
tM77.  Cirotc,  Cniiadiiiii  i;iit(iiii()l()v;i8t,  l.\,  l!t7. 

SiHj/ilijjixnti,  (Jidto. 
1H7H.  (Jroti!,  Ciiiiiiilmii  Kiitctiiioloj^ist,  \',  21'7.  ^ 

I'iyes  nuked,  huj;e,  <»lobo.se.  Front  smooth,  in  perfeet  examples  with 
a  pointe«l  tuft  between  the  antenna':  hut  this  is  a  vaiiabh;  and  often 
detective  feature,  roiif^ue  nioderat  Antenna-  moderate  in  leiij»th, 
arisinpr  from  the  vertex  close  to  i  lie  comi)ouiid  eye,  the  basal  Joint 
enlar^^ed  in  tin;  male,  less  prominent  in  the  female.  In  the  male  the 
antenna!  are  bipectinated,  a  single  branch  on  each  side  of  each  Joint, 
except  that  at  the  inner  Hide,  tor  one  third  from  base,  the  iteetinations 
are  wantinj''.  At  this  jioiiit  two  or  three  Joints  bear  specialized  cor- 
neous processes  similar  to  those  in  Zaxcloyudtha,  and  beyond  it  the 
antenna'  are  normal.  In  the  female  the  antenme  are  simi»le,  with 
slight  lateral  ciliations,  the  eiliatioiis  apparently  arisinj"-  from  alternate 
.jiiints  only.  The  palpi  are  sickle  shaped,  curvin}>'  upward  and  dis- 
tinctly exceeding  the  vertex,  in  essential  character  like  ZoncloffiKitJui. 
Ocelli  distinct,  close  to  the  compound  eye,  and  also  close  to  the  base 
of  the  antenna.  The  body  is  slight,  untnfted,  the  abdomen  cylindrical, 
exceeding  the  an'al  angles  of  the  secondaries.  Legs  long,  (piite  robust, 
the  posterior  Ix'ing  most  developed  and  much  the  longest,  without 
ariiiatuie  other  than  the  usual  spurs  of  middle  and  posterior  pairs. 

In  the  male  the  anterior  tibia'  are  remarkably  moditled.  All  the 
parts  are  elongated  and  tufted,  the  trochanter  is  excessively  d«!Veloped 
III  all  the  si)ecies,  the  tibia  is  an  abortion,  and  the  tarsi  are  obsolete  in 
some 


<pecie 


I> 


1> 


1> 


leg 


and  cov<'rs  a  mass  of  specialized,  bhujkish  scales. 

The  wings  are  moderate  and  i)rop()itioiiate,  the  ])riiiiaries,  excejtt  in 
//.  orcifnalis.  tngonate,  with  marked  or  even  i»ointed  apices;  in  the 
latter  subeijiial,  with  obtuse  orround('<l  apex. 

Mr.  (Irote's  name,  Lito(fn<itli(i,  must  yield  to  the  earlier  term  used  by 
Walker,  and  in  the  above  detinition  are  alsoincluded  Mr.  G rote's  genera 
Pallacltini  and  ISixyrliypvna  as  well  us  Jlormisa  proper.     For Pallackira 


il#vi 


w 


40 


lil'LLETIN    18,  UNITED    STATES    NATIONAL    MUSEUM. 


it... 


tlieie  is  no  base  except  the  loiijuitiulinally  strigata  iiiarkin^.s  of  the 
win^s;  but  in  Sisi/rln/pemi  the  win';'  form  and  color  j-ive  tlie  species 
(luite  a  distinct  ajipearance  which  is  not  borne  out  by  the  more  essen- 
tial clhirattteristics.  The  j^enus  differs  from  Zancloiinntha  mainly  in 
having  pectinated  antenna'  in  the  male,  and  by  the  more  complete 
abortion  ot  the  male  fore  legs.  Otherwise  the  essential  characters  arc 
much  the  same. 

The  species  are  not  closely  allied  and  are  sei)arable  with  ease.  //. 
KhsorjiUilis,  oi  // uhUiJh.saiu,  as  it  is  more  usually  labeled,  is  the  largest,  the 
wings  l)roadei  than  in  its  allies,  and  the  transverse  posterior  and  sub- 
terminal  lines  are  marked  by  nrominent,  preceding,  brown  shades, 
which  are  ditfiise  inwaidly. 

JJ.  litopliora  is  smaller,  and  the  wings  are  narrower  and  more  pointed 
than  in  its  allies.  Tiie  median  lines  are  narrow  and  thread  like,  not 
em)»hasi/cd  in  any  way,  and  the  subterminal  line  is  barely  traceable 
or  entirely  ()bse)lete. 

//.  hiriffdtd  nearly  e(pials  //.  nahHiJ'uscia  in  size,  but  is  Mai'ro''.er 
winged  and  with  a  sonu;what  less  prominent  apex,  it  lacks  all  the 
transverse  lines,  but  has  a  broad,  velvety  brown  longitudinal  streak 
tlirough  the  submedian  interspace,  and  a  short  brown  streak  beyond 
the  c(ill,  not  reaching  the  outer  margin. 

>  II.  orcifcralis  is  (juite  unlike  all  the  others,  which  are  luteous  or 
whitish,  in  the  blackish  smoky  ground  color,  on  which  all  the  markings 
are  obscure,  and  in  thesnbecpial  primaries,  which  have  the  apex  obtuselj 
rounded. 

The  species  are  few  in  number  and  widely  distinct.  None  of  them 
are  common,  tiiough  //.  nuhili/dscia  is  not  rare. 

Litofpitithd  Uiuaris,  (Irote,  does  not  belong  to  the  genus,  nor,  imleed, 
to  this  series;  that  is,  it  is  not  a  Deltoid  at  all. 

'  ANAl.VMS    111'    lllh    ..l-KCIKS    OI-     UO'.JMISA. 

Triui.svcr.sc  lines  (listinct;  color  liUcous;  no  lon!;itii(lin:il  streakings. 

Larg(!r;    all    tho   lincH   ])roniinint.   Ilic   triinMvtnst)   i)<)8tcrior  and   tiii))tunninal 

niaikcil  liy  hutwii  infcodiiii;  sliades Al!H(>iii''IAI.l.s. 

Snialkr;  incilian  Imcfs  narrow  and  thii'adliko;  snl)lerininai  lino  Ncarcfly  trace- 

al)lr;  no  lirown  ,sliadin<;8     l.rnuMioijA. 

Transvorso  lines  obsolete;  color  luteous;  t  w  o  prtiininent  l)lack  lonj^itudinal  streaks, 

iiivirrATA. 

All   markings  oltscure;  (ioloi    smoky  or    Idackish;  one  darker  loiigiliidinal  streak 

iainlly  marked  in  most  siieeinieiis oKciFKKAi.iy. 

Hormisa  absorptalis.  Walker. 

1859.    Walker,  ("at.  Urit.  Mns.,  lleterocera,  XVI,  71,  HormiM. 

uuhiH/dHvia,  (Jroto. 
1S7.^.  (irote,  Mull.  Mnir.  Soc.  Nat.  Sci.,  I.  8.5,  jd.  2.  ligs.  2,  'X  Litoipiatha. 
1S<«.  Sinitli,   Bull.  r.  S.  \at.  Miis.,  41.  ItHO.  jir.  syn. 

(Iround  cokn-  a  pale  luteous  (u-  dirty  yellowish  gray,  with  line  black 
powderings.     llead  and  thorax  coneolorous.     I'rimaries  witl   a  brown 


11 


A    KKVI8IOX    OF    THE    DELTOID    MOTHS SMITH. 


47 


isli  shade  on  the  co«ta.  Transver^o  uiitciior  line  slender,  even,  brown, 
widely  outeiirved  and  outwardly  anjjiulate  in  the  interspaces.  It  is 
nuely  distinct  and  sometimes  entirely  wanting.  Transverse  i)osterior 
line  broad,  brcwn,  inwardly  ditluse,  widening  to  the  hinl  .margin.  It 
is  outwardly  bent  on  the  eosta  and  then  runs  rigidly  obli(iue  inwardly, 
reaching  the  hind  nuirgin  at  its  middle.  A  paler  shade  tbllowing  the 
hue,  quite  marked  in  some  specimens,  merging  insensibly  into  the 
ground  color,  which  in  turn  diirkens  to  the  rigid  brown  subtermimd 
line,  which  runs  irom  the  apex  without  curve  or  bend  to  the  inner '..ar- 
gin,  well  within  the  anal  angle,  and  is  followed  by  a  soniewhat  defined 
pale  line.  A  continuous  brown  terminal  line,  followed  by  a  yellow  line 
at  the  base  of  the  fringes.  Orbicular  wanting.  Keniform  indicated  by 
two  black  dots  at  the  end  of  the  cell.  Secondaries  paler,  with  a  dusky 
median  line,  and  a  j)ale  external  Vmv  which  is  somewhat  iriegular  and 
is  prec.'cded  by  a  brown  sluule.  Beneath,  darker,  with  dense,  coarse, 
o(;herous  brown  powderiugs.  There  is  a  distinct,  broad,  common 
median  line,  and  a  less  evident  pale  subterminal  line,  which  on  second- 
aries is  olten  preceded  by  a  dusky  shade.  All  wings  with  a  discal 
spot. 

Expanse  of  wings,  24  to  2G  mm. =0.1)0  to  1.05  inches. 

llAHi'i'AT. — Canada,  south  to  N'irginia:  west  to  the  Mississipjti 
States.     New  York  in  July. 

This  is  the  most  common  of  the  species,  aiul  always  easily  recognized 
by  the  brown  shaded  transverse  posterior  and  subternunal  lines.  There 
is  very  little  variation,  and  this  chietly  in  the  relative  distinctness  of 
the  transverse  anterior  line. 

The  antenna'  of  the  nnile  have  been  generally  described  under  tiie 
generic  heading.  The  j^'ctinalions  are  long,  and  from  most  of  them 
there  arises  near  the  tip  a  long  slender  bristle,  which  replaces  the 
pectinations  inwardly  at  the  basal  third.  At  this  jH)int  two  joints 
bear  each  a  stout  corneous  proi'ess,  and  next  to  each  a  stilf  bristle  or 
spine.  The  i»e(;tinati<>ns  are  ciliated,  the  haii  very  line  and  moderate 
in  length  on  the  inner  underside.  Jnst  below  the  pectim»ti(»n  on  that 
side  is  also,  on  each  Jtnnt,  a  short  chitinous  process,  bearing  in  a  i)it  a 
short  stout  bristle  or  si)iiie. 

The  fore  legs  of  the  nniie  are  extremely  modilicd.  The  coxa  is  long, 
grooved,  fui-nished  with  long  hair,  forming  no  tufts  or  i)encils.  The 
trochanter  is  shorter,  but  nearly  double  the  length  of  the  fenuir.  The 
latter  is  short  and  stout,  with  a  circular  disklike  enlargement  at  base 
of  underside,  which  is  fninished  with  coarse  pittings  and  with  huig 
black  specialized  scales.  On  the  npi>er  side  it  is  fringed  w  ith  similar 
longer  hair  and  scales,  forming  no  tufts.  The  tibia  is  reduced  to  an 
oval  mass  of  scales  covered  by  a  chitinous  slu'll,  and  the  tarsi  are 
rudimentary,  almost  completely  aborted.  The  legs  furnished  with 
these  structures  have,  of  <'ourse,  entirely  lost  their  normal  function  as 
organs  of  locomotion,  and  are  examples  of  modification  run  riot. 


{ 


■t 
■*.• 

■'fr 


"~M  ^ 


Itf' 


M 


48  UULLKTliN    18,   II^ITKI)    STATES    NATIONAL    MUSEUM. 

Hormisa  litophora,  (J rote. 

1873,  Groti",  Bull,  UnU'.  Soc.  Nat.  Sci.,  1.  H(i,  lAloijnaiUu. 
18'J3.  Siiiitli.  IJiill.  U.  S.  Nat.  Mns.,  11,  380.  llonnmt. 

Gioiind  color  \)i\]v,  grayisli  yellow  o.'  lutoous.  Head  iiiul  thorax  coii- 
{•oloroiis.  Primaries  with  costa  ami  fringes  brownish.  Transverse 
anterior  line  slender,  even,  brown,  a  little  oiitenrved  below  the  costa; 
thence  evenly  obIi(ine  to  the  hind  niarjiin.  Transverse  posterior  line 
slender,  l)rown,  even,  stronjily  outeurved  nwv  the  cell,  then  inv.ardly 
oblninc  and  with  a  slight  incurve  to  the  hind  margin  about  two-thirds 
I'rom  base.  Sid)terminal  line  vaguely  indicated  by  a  few  brown  scales, 
A  narrow  line  at  the  base  of  fringes.  Orbicular  marked  by  ii  black  dot 
on  the  transveise  anterior  line.  Keniform  marked  by  two  black  dots 
at  the  end  of  the  cell.  Secondaries  paler,  almost  immaculate;  a  vague 
darker  median  liiu' aiul  a  mere  trace  of  an  outer  or  subtermiual  line. 
Fringes  brown  with  a  somewhat  metallic  ielle(;tion,  as  has  also  the 
iiinge  of  primaries.  Beneath  paler,  witli  dense  ocherous  powderings, 
with  a  common  median  line,  which  is  crenulate  and  broader  on  the 
primaries,  where  it  becomes  also  more  e\en  toward  the  costa. 

E.\l)anse  of  wings,  L';»  mm.      b.i>L*  iu(di. 

IlAnrrAT. — Middle  and  Central  States. 

This  is  smaller  and  narrower  winged  than  H.  alm>rpt((Iis,  the  primaries 
somewhat  more  iiomted  or  drawn  out  apically.     The  body  is  slight, 
]>yralidil(trm,  and  the  abdomen  considerably  exceeds  the  anal  angle  ot 
the  secondaries.    The  species  is  rare,  and  I  have  seeu  very  few  speci 
mens,  showing  no  variations. 

The  male  antennie  an'  in  type  as  in  the  previous  siieeies;  but  there 
are  four  modilied  joints,  more  or  less  lamellate,  and  one  of  these,  the 
upper,  is  furnished  with  a  stout  and  rather  long  chitinous  spine;  the 
scaly  clothing  being  also  more  dense  and  i»romiiieiit. 

The  forelegs  of  the  male  are  <'ssentially  as  in  //.  (ihsorptalis,c\co\)t 
that  the  tarsi  are  not  (piite  aborte<l.  The  basal  joint  is  very  long  and 
stout,  though  a  mere  shell,  tiie  three  <'nsuing  Joints  are  minute,  but  the 
fourth  is  enlarged,  somewhat  bulbous,  with  ipiite  prominent,  toothed 
claws.  Abortion  is  not  carried  (piite-so  far  here  as  in  its  ally:  l)ut  the 
cuiimis  tarsal  modiiication  is  as  interesting  as  the  complete  absemte  of 
this  feature. 

Hormisa  bivittata,  (Jrote. 

1877.  (iroto,  Cauadian  Kntoiu<»lo<j;i.st,  IX,  1118,  I'aUachira. 

"  Entirely  pale  ochery,  i)ow<lere(l  with  fuscous.  A  broad  fuscous 
stripe  below  median  v<'in  from  ba.se  to  external  margin.  A  second, 
shorter  stripe,  Irom  the  extremity  of  the  cell  (mtwardly.  Else  the 
entire  insect  is  concohmms." 

>lxi)anse  of  wings,  25  to  2(5  nnn.  =  1  to  1.05  inches. 

Haiutat.— Canada;  N(Utherii,  Middle,  and  Central  States;  Iowa. 
New  York  in  July. 


A    REVISION    UF    THE    DELTOID    MOTHS — SMITH. 


49 


A  rare  species,  of  wliich  I  liave  only  a  female  at  liaiid,  I  have  seen 
I  lie  male,  however,  ami  liml  it  fully  conyeiienc  with  U.  ahsorptalis; 
indeed,  Mr.  (irote's  generic  description  of  i*rt7/ac7t/m  i.s  iu  all  essentials 
like  til  at  given  by  me  for  HormLsa. 

The  species  can  not  be  mistaken  for  any  other  in  the  entire  Deltoid 
series  represented  in  our  fauna.  The  specific  description  is  copied 
from  Mr.  Grote's  original  characterization,  and  is  ample  for  the  detiiii- 
tiou  of  this  simply  marked  form. 

Hormisa  orciferalis,  W.ilkcr. 

1859.  Wiilker,  Cat.  Rrit.  Miis.,  Ilctcroct'ia,  X\'I, !.';!."),  Uloninsa. 
1K")9   Walker,  Cat.  Urit.  Mils.,  Iliteroccu;!,   XIX.STO,   !  EiiKvitjiii. 
1893.  Smith,  Bull.  II.  S.  Nat.  Mu.s.,  14,  :WG,  SixurhmxuKi. 

2)ii]>illarin,  (Jrotc. 
1873.  (iroto,  Canadian  Eutoiiioloyist,  V,  '2'J~.  •'^iniirluniciKi. 
1893.  Smith,  Mull.  I'.  S,  Nat.  Miis.,  II,  38(),  i.r.  .syn. 

hartii,  L''i«'iicli. 
1891.  French,  Hull.  Ills.  State  Lab.  Nat    Ili.st.,  IV,  10,  I'aUachirn. 

"Male.  Concoh)rous,  silky  drab,  veins  lending  lo  be  paler  marked, 
{•rimaries  with  diHiise  darker  teiininal  shading,  and  a  discal,  luniow, 
outwardly  e.xtended  streak.  An  e.\c(HHliiigly  line  and  faint  outer  trans- 
verse line,  rounded  ojiposite  the  di.scal  cell.  A  snbterminal  oblique 
punctiform  line  from  apices  to  internal  margin  within  the  angle.  Costal 
margin  dark  shaded.  The  discal  dots  are  jieiceivable  against  the 
htiigitudinal  discal  streak.  Hind  wings  a  little  paler,  with  a  very  faint 
transverse  shade  line.  An  iuterrui»ted  line  dotted  line  before  the  silky 
tVinges  on  both  wings.  Ueneath  darker;  the  liiiid  wings  much  clouded 
with  dark  brownish,  with  a  tlistinct  di  -al  sjiot  and  a  continued  trans- 
v(!rse  guttiform  or  cuneiibrm  subterminal  line,  aiialagous  to  the  subter 
nrnial  line  of  the  fore  wings  above;  faint  traces  of  an  inner  transverse 
Inie.  Fore  wings  without  markings  except  an  incomplete  reproduction 
of  the  subterminal  shaded  apices.  l>ody  paits  concolorous;  abdomen 
like  himl,  thorax  like  fore  wings.'' 

"Female.  The  labial  iialpi  are  held  as  in  the  male,  but  tW.  third  article 
IS  more  pointed.  Slighter  than  the  male,  with  simple  antenna'  and  with 
;iliiiost  wholly  blackish  brown  primaries.  The  male  exhibits  two  trans 
verse  lines,  Mhile  both  female  specimens  have  entirely  glos.sy  brown  foje 
wings  without  apparent  marks  except  tiie  inconspicuous  discal  [xtiiits. 
lliiid  wings  pale  drab,  with  faint  darker  terminal  shailing.  l>eneatli, 
the  secondaries  have  tlu'  double  lines  more  equally  deliiied.  Thorax 
and  head  dark,  concMlorous  with  primaries." 

Expanse  of  wings.  21  to  2'i  mm.  =0.8.")  to  (>.!>(>  inch. 

llARiTAT. — Texas.,  Florida.  S(»nth<Mn  States;  lllinoi.s;   IMiiladelpliia. 

The  above  is  Mr.  (irote's  original  description,  which  is  api)licable  to 
the  types  and  to  most  of  the  other  specimens  seen  by  me.  A  male 
I'xamph'  trom  JHorida,  now  bel.ne  me,  is  considerably  darker,  smoky, 
almost  blackish.     I  have  seen  this  species  only  rarely,  and  never  from 

78G1'— No.  48 \ 


50 


BULLETIN    18,   UNITED    STATES   NATIONAL    MUSEUM. 


I'  •' 


any  point  so  far  north  as  rhila<leli»liia,  Iroiii  which  one  of  Mr.  (Jrote'> 
.specimens  is  credited. 

The  male  antenna-  liave  the  pectinations  well  marked  and  laterally 
ciliated,  furnished  near  tip  with  a  long  bristle,  and  toward  the  apex  the 
branches  become  clavate  or  somewhat  enlarged,  clublike.  Atone  thii<l 
from  base  a.  single  joint  is  inwardly  furnished  with  a  single  corneous 
piocess,  accomi)anied  by  a  stiff  bristle,  and  in  all  essentials  the  membei 
agrees  with  the  genus  to  which  it  is  referred. 

The  anterior  leg  of  the  male  is  like  tliat  of  IjHophora,  save  that  there 
are  no  tuftings.  The  sensitive  space  on  the  under  side  of  the  femur  is 
more  protuberant,  rounded,  and  tits  (juite  (tlosely  against  the  tibinl 
ei)iphysis,  which  in  turn  tits  into  the  greatly  developed  tibial  process, 
forming  an  oval  mass  beyond  which  the  four  rudimentiiry  tarsal  joints 
project.  In  this  oval  mass  are  concealed  the  specialized  scales  which 
nowhere  devcloi)  into  i)encils  of  hair. 

Except  lor  the  wing  form,  this  species  agrees  in  all  its  essential  tea 
tures  with  the  (►ther  species  of  the  genus  to  whicli  I  have  referred  it. 
The  apices  here  are  usually  as  distinctly  rounded  as  they  are  pointed, 
or  at  h^ast  rectangular,  in  the  other  forms;  but  the  ditferenceis  hardly 
greater  than  that  found  iimong  the  s])ecies  of  Zidicloi/iiatlia,  and  1  h.ivc 
not  deemed  it  well  to  disassociate  it.  The  palpi  show  a  tendency  to 
an  upright  scaling  of  tlie  upi)er  edge;  but  not  more  marked  than  in 
some  specimens  of  //.  alm>rptali.s. 

Professor  French's  type  of  I'nUiichira  Imrtii  I  have  seen  by  tlie 
courtesy  of  Professor  Forbes.  It  is  tyj)ical  //.  orci/endin  and  agrees 
fully  with  Mr.  (Irote's  description  of  male  If.  piipUhiris.  IM-ofessor  Fr'jiicli 
allowed  the  obvious  resemblance  to  Pidhwhlra  hlrittata  to  delude  him 
into  the  belief  that  it  could  not  have  been  described  under  another 
generic  name. 

Genus    PHILOMETRA,    (iiote. 

1872.  Groto,  Tnuus.  Am.  Eiitomolo'-ieiii  Soc,  IV,  ilit. 
Eyes  naked,  large,  globose.  Front  smooth,  in  perfect  specimens  with 
a  pointed  tuft  between  the  antenna'.  Tongue  moderate.  AnteniKc 
long,  arising  from  the  vertex  close  to  the  compound  eye,  the  basal  joint 
somewhat  enlarged  in  the  male.  In  the  male  the  antennae  are  lengthily 
bipectinated  in  their  en  tire  extent,  the  branches  slender  and  setose,  and 
there  is  no  special  modilication.  In  the  female  the  antenna'  are  shorter, 
simple  or  sparsely  ciliated.  Ocelli  distinct,  close  to  the  comiumnd  eye. 
well  removetl  from  the  base  of  the  antenna'  in  /'.  rtmehisalin,  (pule 
closely  a|)proximated  in  i'.  metonalin.  Vii\[n  h)ng,the  second  jcnnt  iiiikIi 
the  longest,  clothed  with  uprigiit  scales  above  and  on  the  side,  formiii;; 
a  sharp  ridge  which  m  I\  mckmniix  is  ecjual  and  contiiunms,  l)ut  \\\ 
l\  ctimelumlis  is  more  prominent  centrally.  In  the  former  the  }>iiliii 
are  directed  straight  forward,  the  terminal  joints  diverging  at  up. 
while  in  the  latter  they  diverge  from  the  base  and  aie  curved  obli(pi<'ly 


A    ItEVISlON    OF    THE    DELTOIU    MOTHS — SMITH. 


51 


upward,  but  not  sicklelike,  iiov  backward.  The  body  is  inodenite  or 
slight,  the  abdoineu  cybndrical,  jsiibeiiual,  leachiiig-  to  or  sHyhtly 
exceeding'  the  anal  angle  of  secondaries.  The  wings  are  large,  trigo- 
nate,  wide,  with  arched  costa,  rectangular  apices,  and  evenly  curved 
outer  margin.  Venation  normal.  Legs  long  and  quite  robust,  without 
armature,  save  the  usual  spurs  of  the  middle  and  hind  tibia-,  and  these 
are  long  and  unequal. 

In  the  male  the  modilii-ation  is  «juite  ditt'ereut  in  the  species.  In  //. 
inetonalis  it  resembles  that  usual  in  Hormim,  while  in  Jf.  ('itmi'lKsalia 
the  tuftings  eijual  or  exceed  in  prominence  any  x'ound  in  Z((nclo(/natha. 

The  essential  characters  of  the  genus  are  the  lengthily  and  evenly 
pectinated  antenna'  of  the  male  combined  with  the  pali)al  structure 
:in<l  broad  nuHided  wings. 

The  two  species  referred  to  here  are  so  similar  in  tyi)e  of  maculation 
that,  when  rubbed,  there  is  sometimes  a  ([uestiou  as  to  species,  and  yet 
they  are  quite  strongly  distinct,  structurally.  The  difference  between 
the  palpi  was  i)ointed  out  by  Mr.  (Irote;  that  between  the  forelegs  of 
the  male  seems  to  have  escaped  him. 

/*.  eumeluNaUs,  which  may  be  considered  the  type  of  the  genus,  is 
larger  in  average  expanse  and  darker,  the  liiteous  ground  strongly 
powderetl  with  brown  scales,  which  form  a  rather  distinct,  though  dif- 
fuse, median  band,  and  a  (piite  marked  shade  iireceding  the  subterini- 
iial  lin(\    The  median  lines,  on  the  other  hand,  are  vague  and  obscure. 

Jn  P.  H«<7o«(///.s' the  ground  color  is  j)aler  and  much  more  even;  the 
median  shade,  when  visible,  as  it  usually  is,  only  a  little  darker,  while 
tlie  subterminal  sha<le  is  Darely  traceable  in  most  instances.  The 
iiu'diau  lines,  however,  are  usually  distinct,  though  narrow  and  thread- 
like, and  are  more  even  than  in  its  ally. 

Further  diit'erences  will  appear  in  the  detailed  descriptions  of  the 
species,  neither  of  which  is  rare. 


ANALYSIS    OK    THE    SI'ECIKS   OK    PHILOMETHA. 

Piiljti  (lirectoil  straight  forward,  diverging  iit  tip;  aiitouiiii  ot  iiialu  lengthily  bipec- 
tiuated,  the  branches  slender,  setose mktonalis. 

Piilpi  directed  ol)li(|Uely  npward,  diverging  from  base;  aiiUMina  of  male  bi]H'cti- 
uatcd,  the  branches  stont,  with  stont,  long  bristles  near  tip lu  mkmsalis. 

",■>'    Philometra  metoiialis.  Walker. 

IHo'J.  Walker,  t'at.  Brit.  Mns.,  Heterocera,  XVI,  23U,  JItnniiiUi. 
185)3.  Smith,  Bull.  U.  S.  Nat.  Mns.,  41,  3S3,  I'hilometra. 

ijddntiliH,  Walker. 
1859.  Walker,  Cat.  Hrit.  Mns..  Heterocera,  XIX,  876,  KpizeiixiH. 
1893.  Smith,  Bnll.  I'.  S.  Nat.  Mns.,  44,  3S;],  I'hHomctra. 

loiif/ihihriH,  (irote. 

1872.  (i'ote.  Trans.  Am.  Entomological  Soe.,  IV,  99.  309,  I'hUumetra, 

1873.  Grote,  Bnll.  Bnff.  Soc.  Nat.  Sci.,  I,  40,  I'hilonuim. 
1893.  Smith,  IbiU.  I'.  8.  Kat.  Mns.,  41.  IKi,  j.r.  syu. 


52 


HL'LL1:T1N    •!«,   UNITED    STATES    NATIONAL    MUSEUM. 


u. 


'ri: 


Gi'oiiiul  color  a  pule  luteous,  powdered  with  darker  scales.  Head 
aud  thorax  concolorous.  Primaries  with  the  markinj^s  evident,  thon<ili 
not  proiniiieiit,  without  contrasting-  shades.  IJasal  line  vaguely  marked 
in  some  specimens.  Transverse  anterior  line  slender,  brown,  rarel.\ 
indistinct,  slightly  outcurved,  a  little  drawn  in  on  the  median  vein. 
Transverse  posterior  line  slender,  somewhat  dilated  on  the  costa,  reg 
ularly  and  somewhat  variably  outcurved  over  the  cell,  and  rathci 
eveidy  obliipie  or  with  a  small  incurve  below.  Subterminal  line  vague, 
marked  as  a  somewhat  ditluse,  indefinite  dusky  shade,  which  is  some 
times  scarcely  traceable  and  siunetimes  fairly  nmrked,  occasionally 
forming  a  dusky  ai)ical  spot.  Through  the  outer  poition  of  the  median 
space  is  a  broad,  ditluse,  often  indistinct,  always  indefinite,  darker, 
brown  shade  band,  involving  the  slender  lunule  which  represents  tlu' 
reniform.  Orbicular  Avanting,  or  marked  only  by  a  small  dot  on  tin- 
transverse  anterior  line.  A  slender,  dark,  continuous  ternunal  line, 
followed  by  a  more  or  less  obvious  pale  line  at  the  base  of  the  fringes. 
Secondaries  paler,  sometimes  whitish,  with  a  darker  median  line,  most 
evident  in  pale  specimens,  and  an  inc()mi)lete  outer  pale  line,  defined 
toward  the  inner  margin  by  a  preceding  dusky  shade.  IJeneath,  willi 
coarse,  ociierous  i»owderings,  with  a  distinct,  brown  contmon  extia- 
median  line  and  a  distinct  discal  dot  on  all  wings. 

Expanse  of  wings,  21  to  20  nnn.=:(>.sr)  to  l.Oa  inches. 

IlAini'AT. — Nova  Scotia,  southward  to  Virginia;  Central  States; 
New  York  in  rlune,  July,  and  August, 

The  species  is  not  rare,  and  varies  within  narrow  limits  only.  The 
ground  color  may  be  somewhat  lighter  or  darker,  aiul  the  powdering 
more  or  less  evident,  and  as  the  s})ecimens  are  darker  the  lines  are 
less  distinct  and  the  niedian  shade  band  becomes  nmre  obvious;  and 
such  specimens,  when  imperfect,  may  be  confused  with  /*.  cumvhisalh 
if  the  structural  (diaracters  are  not  looked  to.  The  paljji  have  been 
already  referred  to,  and  it  is  a  m-atter  of  regret  that  Mr.  (Irote's  expres- 
sive luime  could  not  have  been  retained. 

The  male  antenna'  are  lengthily  bii>ectiuated,  the  branches  slender, 
setose,  the  surface  imbricated  very  much  as  m  the  AphUUda;  becomiii': 
shorter  and  somewhat  clavate  toward  the  ti]);  not  furnished  with  ,i 
longer  terminal  bristle.  In  the  femah^  the  joints  are  shorter  and  me 
feebly  ciliated. 

The  fore  legs  of  the  male  are  much  as  in  llonnisa.  The  coxa  is  lon.u. 
furnished  with  an  imperfect  scale  tuft  at  the  apex.  The  trochanter 
equals  the  femur  in  length.  Femur  rather  stout,  with  a  dittused  s<  ii 
sitive  surface  beneath,  and  long,  specialized  scales,  not  forming  tutis 
The  tibia  consists  mainly  of  epii)hysis  and  pr(>cess,  tbrmiiig  a  sort  ol 
pouch  concealing  hmg  specialized  scales,  and  concealing  all  save  f  lie 
terminal  joint  of  the  tarsi. 

In  the  fore  wings  examined,  vein  10  arises  from  the  accessory  -  ell 
near  its  tip,  imlependeiit  of  S. 


m 


;.i: 


A    UKVISION    OF    THK    DELTOID   MOTHS — SMITH. 


6B 


Philometra  emelusalis,  Walker. 

ISm.  Walker.  Cat.  Hrit.  M118.,  H.-terocora.  XVI,  l(r>,  Ilerminio. 
1891.  Sinitli,  List  LcitKloiitcra.,  (iS,  /'hilowrlta. 

Herraliconiin,  (irote. 
1872.  Grotc,  TrniiH.  Am.  Kntomolojijical  Soc,  IV,  W,  'M)'.K  I'hilometm. 
187H.  <!rot«,  Hull.  Wnff.  Soc.  Nat.  Sci.,  I,  10,  I'hiUnnclra. 
1S!H.  Smith,  List.  L«'i)ido]>t('ra,  (i.3,  ])r.  syii. 

(Inmiid  color  liiteous,  with  blackish  and  ])ro\vn  i)()\v(lcrinfrs.  Head 
and  tliorax  concolorous.  Primaries  with  the  pitwderiiij>s  dense,  though 
nre<>ularly  distributed,  jiiviuj;-  the  winjjjs  a  peculiarly  sordid  or  dirty 
appearauce.  Uasal  liue  faiutlyuiarkeil  in  souic  speciuieus.  Transverse 
anterior  line  blackish,  rarely  distinct,  often  diffuse  and  indefined,  with 
two  even  outcurves  in  its  <'ourse.  Transverse  jxjsterior  line  slender, 
irrcfiular;  a  little  marked  on  the  veins,  irregularly  outcurved  over  the 
cell,  somewhat  incurve<l  beneath;  often  diffuse  and  sometinu's  almost 
obsolete,  except  on  the  costa,  where  it  is  somewhat  dilated.  Subtermi- 
iial  Inie  irregularly  sinuate,  ])ale,  marked  by  a  more  or  less  distinct 
apical  blotch  and  i>recedin,<>  shade,  which  becomes  inwardly  diffuse  and 
somotuni's  darkens  a  large  part  of  the  subterminal  space.  A  narrow, 
black,  interru])ted  terminal  line.  A  broad,  dilfuse,  indeflned,  almost 
n|iiight,  smoky  median  shade,  involving  the  reniform,  which  is  usually 
a  narrow  lunule,  but  sometimes  a  more  prominent  oval,  though  not 
(li'Tmed,  blotch.  There  is  sometimes  a  vague  trace  of  an  orbicular. 
Secondaries  paler,  varying  in  shade,  always  i)ow«lery,  with  an  indefined 
median  shades  line,  more  ol>vious  in  pale  sjtecimens,  and  an  incomidete 
siil>terininal  line,  which  is  pale  and  ])receded  by  a  dark  shade  toward 
the  iiiiul  margin;  occasionally  this  line  is  comi)lete,  and  then  the  ter- 
iiiiiial  si)ace  is  somewhat  paler  than  the  rest  of  the  wing;  beneath 
brighter  yellowish,  with  ocherous  pow<lerings.  There  is  a  distinct, 
conunon,  brown  median  line,  a  distinct  discal  lunule,  which  on  the 
secondaries  is  sometimes  faintly  visible  on  the  ui)per  side,  and  a  vague, 
incomplete  outer  line. 

Hxi)anse  of  wir.gs,  25  to  .'50  mm.  =  l  to  1.20  inches. 

II  Am  TAT. — Canada  to  \'irginia,  west  to  Iowa;  South  Dakota,  June 
and  July. 

The  species  is  common  and  varies  little.  It  is  usually  a  question  of 
a  more  or  less  dense  dark  powdering  and  the  corresponding  obscuirity 
ol  the  ordinary  lines. 

In  the  male  the  antenme  are  bipectinated,  the  processes  long,  some- 
what enlarged  toward  the  tip,  near  which  is  inserted  a  long,  curved 
l)nstle,  the  surface  smooth,  without  scaly  markings,  but  with  obvious 
luttiugs,  and  they  are  quite  abuinlantly  setose. 

'fhe  fore  legs  of  the  male  are  (|uite  different  from  the  i)receding- 
pi'cies.  The  coxa  is  long,  slender,  and  with  a  i)encil  of  scale-like  hair 
il  Its  tip.  The  trochanter  is  long,  scaicely  shorter  than  tin;  femur. 
fii«'  lemur  is  stout  and  on  the  under  side  furnished  with  a  dense  pencil 


if: 


54 


miLLKTIN    JS,  UNITED    STATES    NATIONAL    MUSEUM. 


■m 


of  \oug  hliu'U  liair.  ciipubh;  of  fiiiilikc  cxpiiiision,  Tlu>  tibia  is  iicnrly 
all  i)iO('es8,  the  cpipliysis  smiill,  tlic  outer  slidi  covoriii}?  a  dense  tiiit 
of  blaekisli  liair  iiiid  scales,  capable  of  loose  brushy  expsuision,  and 
these  scales  extend  beyond  the  (diitinons  stnieture  and  <*onceal  the 
remnant  of  the  tarsus  which  is  almost  aborted. 

In  the  si>ecim(Mis  examined  of  this  species,  the  accessory  cell  of 
primaries  <;ives  rise  at  its  tii>  to  7  and  a  Ions'  stalk,  from  which  arise 
8,  !),  and  10. 

The  structural  ditferences  between  the  two  species  referred  here  are 
j>reater  than  in  any  other  jienus  in  the  series,  and  withal  the  super 
licial  r(!semblance  is  (piite  marke<l. 

Genus  CHYTOLITA      (iroto. 

\HT,\.  (irotf,  Trans.  Am.  Eiitoniolojfical  Soc,  IV,  30!). 
187!$.  Groto,  Mull.  Mull'.  Soc.  Niit.  Sci..  I,  :«). 

Ilrrvi'niid.  (iueuvo. 
188'J.  Smifli,  Mull.  I'.klii.  Eiiloiiiolc^ic  il  Soc,  V,  1. 

Eyes  naked,  nuxhu'ate,  }»iobose.  I^'ront  smooth,  with  a,  pointed  tuft 
betwe(m  the  antenna'.  Antenna'  lon<i',  inserted  on  the  vertex,  close 
to  the  compound  eye.  In  the  male  the  joints  are  marked,  heavily 
scaled,  with  Ion"'  lateral  bristles,  and  at  basal  third  are  two  oi 
three  joints  that  arc  thickened  and  furnished  with,  each,  a  stout 
ccn'neous  i)rocess,  the  tliird  when  present  always  smaller  than  the 
others,  and,  in  fact,  merely  a  somewhat  shorter  and  stouter  lateral 
bristle.  In  the  fenurle  the  joints  arc  very  slightly  marked  and  arc 
burnished  with  small  lateral  bristles.  The  ocelli  are  j)rominent,  set 
close  to  the  compoiuwl  eye,  moderati'ly  lemoved  from  the  base  ol 
the  antenna'.  Talpi  loii^,  straightly  projected  forward  or  directed 
obliquely  ui)war<l,  th(^  seccmd  joint  extremely  long-,  the  third  short  and 
set  in  at  an  ujtward  anjile  to  the  second.  The  second  joint  is  clothed 
with  njuight  scales,  forming  a  ridge  or  edge,  or,  as  the  (Jermans 
render  it,  "schneidig  beschupi)t,"'  and  this  scaly  clothing  is  nearl\ 
equal  throughout,  shortening  only  at  extreme  base.  Body  moderate, 
untufted,  abdomen  smooth,  cylindric,  reaching  to  or  slightly  exceed 
ing  the  hind  angle  of  sp?;.)ndaries.  Legs  long  and  moderately  stout, 
spurs  of  the  middle  and  hind  tibiu'  long,  uneipial.  Fore  legs  in  the 
mfile  very  nnich  elongated  and  ])rominently  tiift(Ml.  The  <',oxa  is  very 
long  and  furnished  with  very  long  yellow  hair,  longest  toward  base, 
forming  a  somewhat  imperfect  tuft.  Trochantxa-  comparatively  short. 
Fenuir  stout,  furnished  at  ti[»  of  upper  side  with  a  pencil  of  very  long 
yellow  hair,  capable  of  fan  like  exi)ansioii.  Tibia  aborted,  the  epiphy 
sis  small,  the  process  well  developed  and  covering  the  basal  joint  of 
tarsi,  concealing  also  a  mass  of  speciaii/ed  scales.  Tlie  tarsi  have  the 
basal  joint  very  long,  the  others  normal.  In  the  female  the  fore  leg^ 
are  normal,  Tlu'  w  ings  are  large,  the  primaries  trigonate,  with  som< 
what  produced  or  rei-tangular  ai)ices  and  oblicpie,  evenly  curved  outer 
margin. 


A    REVISION    OV    THE    DELTOID    MOTFIS — SMITH. 


,55 


Two  sprcioH  lijivo  been  doscrilxMl  in  this  <;ciius,  rclrncd  in  my  (!a(ii- 
|(i},ni('  ((>  llrrmiiiio.  In  substituting  Mr.  (hotci's  {fcnus  for  these  species 
:iii(l  oniittiiift-  llrntiinhi  siltoj^i'ther  from  tlie  list  of  ()ui'  ^eneni,  I  have 
licen  decided  by  the  hick  of  Fiuropcan  material  and  the  jtresent  dilli- 
culty  in  jiettinj;  at  the  type  of  the  jicnns  out  of  the  mass  of  Knropean 
works  that  are  not  (!onvenient]y  accessible  to  me  here. 

Lederer  defines  Ilcntiinia  as  ln'in<;'  like  Zdnrlotiimfliti,  but  with  the 
jialpi  (lirtereiit,  and  he  msikes  three  sections:  tiie  lirst  with  jxM'tinated 
male  antenna',  furnished  witii  a  knotted  thi(!kenin<i'  in  the  center  ami 
Die  fm-e  le<;s  with  brushes  of  hair,  indudinj^-  //.  criiialis,  II.  f/ri/pfialis, 
anil  Jl.  rrihriilin;  the  second  with  antenna'  as  l)elbi'e.  bn'  the  fore  le}»s 
without  i»encils  of  hair,  in<'lu<lin}>-  //.  tctildcnhifis:  the  third  with  tlu^ 
male  antenna'  havinjj  laS'ral  bristles  oidy,  without  thickeniu}?  at  the 
iiiMblle,  and  no  statement  con<M^rnin}i'  the  fore  iejis,  //.  deriralis  beinj;' 
the  sole  S])ecies. 

(iuem'e  makes  his  genns  Jfrrminia  comprise  si»eci<'s  of  Ztivclof/naflia 
as  well  as  (].  uiothitfalis  of  the  present  series  and  tlu'  Jlnoiiiiiii  of  Led- 
erei',  refusinji'  to  consiiUu'  any  of  the  <jenera  se]>arated  as  valid.  Mr. 
(iiote  in  1<S73  analyzed  the  lOuropi^an  sjjecies  and  genera'  and  con- 
cluded that  H.  icnIatuiUiris  shouhl  be  considered  as  type,  and  if  this  is 
to  be  followed  we  have  no  s])eeies  referable  to  llrrmin'm,  because  none 
of  our  forms  have  p(!ctinated  antenna' thickened  near  the  middle,  with- 
out modilied  fore  tibia'  in  the  male,  cond)ined  with  the  ])eculiar  palpal 
structuj'e.  In  view  of  my  inability  to  study  the  European  forms  at 
present,  J  liave  accepted  JMr.  Cirote's  conclusions,  ami  hence  his  genus, 
Clij/lnlitd. 

Tlu^  two  si)eeies  referred  here  differ  mainly  in  size,  C.  prtrctdis  being; 
the  snmller.  In  tlu^  very  larg(^  serit'S  befoi-e  me  I  am  unable  to  tind  a 
single  constant  ditference  in  maculation,  and  the  color  of  (\  petrealift 
can  only  be  said  to  be  darker  in  a  general  way.  The  ditrerence  in  the 
l>alpi  i)oiuled  out  by  Mr.  Grote  is  also  inconstaiit,  though  in  C.  pctre- 
idis  more  .f,*ecimens  have  them  straight  than  is  the  <'ase  in  C.  mor- 
hidalisj  and  the  latter  may  be  said  to  have  a  tendency  to  have  theju 
curved  upward.  The  ditference  in  size,  on  the  other  hand,  seems  to 
he  constant,  and  it  is  accompanied  in  T.  y/r/rtv/Z/.s' by  a  more  than  pro 
portionate  <lilference  in  the  antenna',  where  the  lateral  bristles  are 
lunch  weaker,  and  in  the  fore  legs,  where  the  member  is  much  smaller 
than  in  (\  niorhulnlis. 

There  is  a  hardly  ujarked  dirterence  in  the  male  genitalia,  whicdi  will 
be  described  under  the  .sj)eciiic  headings. 

ANALYSIS    <»l'    Till'.    SIMXII.S    OK    (IIVTOUTA. 

:^i/<' liirger,  avPTiiffc  32  iiiiii.;  color  paler;  fore  loj-ot' niiilc  iiroportioiiatoly 

liU<ie MOUHIDALIS. 

>i/tNinall<'r,  avfrago  27  niin. ;  color  darkor;  (ore  ley-  of  iiialc  liaif  tlir  si/c 

ol  C.  luofhidalis I'KTItKAUS. 


i 


'  liuU.  IJiili,  8()f.  Nat.  S.i..  I,  39. 1873. 


56 


1U'M-1:T1\    !X,   I'MTHIJ    STATKS    NA'IIONAI.    MI'SKUM. 


I  ^  *l 

11 


Chytolita  moibiclaliH,  (iiiciH'c 

lHr4.  finPiK'O.  Si)0('i<'M(J(ii.>riil,  Doltoitlt'H,  .Ml,  pi.  <i,  liji.  :<•  Unminin. 

1R')!).   Wiilkor,  Cut.  Miit.  Miih.  lli-toroctuii,  X\  I,  lo:?,  Unminin. 

IHTJ.  (Jrotc, 'rrans.  Am.  Kiitoiiiolo^icil  Soc,  I\',  !l(>,  Ihrmiiiia. 

187S,  firoio,  Trim.H.  Am.  Kiit<nm»l()Ki«^al  Soc,  IV,  :{()!l,  Chiitoliitt. 

lH7:t.  (in.tr.  Hull.  Biiir.  Soc.  N'iit.  Sci.,  I.  :i!»,  Clnilolila. 

1«H(),  (NMiiiillitt.  (')iMii(liiui  HntdiiiKlo^jisI,  XII,  II,  larva. 

IWta.  Smith,  Mull.  II.  S.  Nut.  Mus.,  II,  :W1,  llerminiu. 
(Jromid  color  liit('<ms   j-ray  with  niovo  iiitoiiso  yellow  powdeiings. 
I  lead  and  thorax  <!oii(!oloroiis.     Primaries  with  the  median  lines  single, 
usually  distinct,  broad,  .somctinios  a  little  diU'use.     TrHiisver.se  anterior 
hue  outwardly  bent  on  tlu'  costa,  thence  nearly  nprij^ht  or  oidy  si  little 
irrcf-ular  or  somewhat  outcurved  in  the  intersi)aces.    Transver.se  pos 
terior  line  widely  and  very  evenly  outcurved  over  the  cell,  nnich  less 
incurved  below;  even  or  a  little  marked  on  the  veins.     Subtermiual 
line  a  series  of  blacki.sh   dots  or  small   sjxtts,  followed  by  indefinite 
paler  marks.     A  shMider,  iaterrupted  black  terminal  line.     Orbicular 
wantiuR-.     Ivenirorm  always  evident,  usually  distinct,  sometimes  prom 
inent;  nearly  iiprij;ht,  moderate  in  size,  subkidney  shai)ed,  yellowisli 
to  bhicki.sh,  s<unetimes  annulate  with  black  scales.     The  transverse 
posterior  line  is  sometimes  inwardly  dilliise,  and  sometimes  the  outer 
portion  of  the  median  sj»ac<'  is  markedly  darker.     Secondaries  paler, 
more  ]>owdery,  with  a  va!i>ue,  incoini)lete,  dusky  extra  median  line  and 
a  ])ale,   often   irr<'fiular,  also   in('omplet<\   subtermiiial  line,  which   is 
jneceded  by  a  blackish  shading.     Beneath,  with  coarse  ocherona  ])ow, 
derings,  a  broad,  variably  <listinct  median  line,  a  less  evident,  often 
ob.solete,  ])ale  outer  line,  and  on  secondaries  a  dusky  di.scal  lunule. 
Exi)anse  of  winys,  2S  to  M  mm.  =  l.lo  t<;  l.'"i<>  inches. 
IlAiUTAT. — Nova    Scotia,    southward   to    Virginia;   Central   Stat\s. 
.June  and  July. 

This  species  varies  little  (>xcept  in  the  distiiu^tness  of  the  renifonn 
and  the  relative  inominence  of  the  median  lines.  It  is  common 
throughout  its  range  and  readily  started  up  during  the  day,  while 
coming  freely  to  light  and  to  sugar.  The  sexual  i)ecnliarities  <»t 
antenna'  and  fore  legs  liave  be<'n  already  sulticiently  described. 

The  harpes  of  the  genitalia  ot  the  male  have  a  slender,  membranous 
upper  prolongation,  which  is  s(piarcd  at  the  tij),  and  a  stout,  veiv 
strongly  chitinized,  i»oiiited  process,  interiorly  .shorter  than  the  u])!)'!' 
part,  the  intervening  si)ace  roundedly  excavated. 

Chytolita  petiealis.  (Jiotf. 

18S0.  (iroto,  C:uia<liaii  Kntomoloj^ist,  XII.  LMil,  Chi/lolita. 
1S!«.  Smith,  Hull.  II.  S.  Xat.  Miis.,  11,  ;!S1,  H,rwi„i(,. 

(Iround  color  Inteous  gray,  n^ore  or  less  black  powdered.  Head  a  id 
thorax  concolorous.  Primaries  varying  in  tint,  sometimes  alnnst 
smoky;  median  lines  usually  defined  and  always  traceable,  thou  ;li 
sometimes  ol)seured.  The  ordinary  lines  and  marks  are  in  all  essen 
tials  like  those  of  ('.  morhitiahs,  save  that   they  are  less  even,  tin' 


I- 


A    REVISION    OF    TIIK    DKLTOll)    MOTHS SMITH. 


f)? 


tiiinsverse   anterior   inoro    outcnrved.   thr    transverse    posterior   (re 
<|iieiitly  <lenti(;ulata     Tlie  reniiorni   tends   to   lieconie  entirely  l>laek; 
bnt  this  IS  a  v:.riahle  featnr<>.     In  all  other  particulars  the  description 
ot  <\  inofhiihilis  api)lies. 

Kxpanse  of  wiufjs,  2,'i  to  .'{1  mm.  =  0.!>2  t»)  l.'Jt  inches. 

11  AiHTAT.— Canada  to  I'.ritish  Columbia,  south  to  Jielaware,  west  to 
South  Dakota.     .Fune  and  July. 

The  relation  of  this  sju'cies  to  C.  morhidnlis  has  been  iilready  stated. 
As  a.  whole,  it  is  distinctly  smaller  and  darker  in  {ground  color.  There 
is  also  a  smoky  sulfiision  of  the  ininmrics  in  iminy  eases,  and  a  Ichs 
miirked  delinition  of  fhe  ordinary  lines.  Vet  sonn»  specimens  are 
exactly  like  C.  morhitlaiis  in  all  save  size.  With  a  series  of  more  than 
fifty  apeciinens  at  hand,  I  find  none  that  I  consider  iis  doubtful,  even 
where  equals  in  size,  thoiigh  I  confess  myself  unable  to  deline  the 
specilic  characters  more  accural ely  than  1  hav<'  done. 

The  genitalia  of  the  male  iijiiee  in  all  essentials  with  those  of  C. 
morhidalis,  but  the  membraneous  proloiijiation  ol  harju's  is  rounded  at 
the  tij),  the  inferior  corneous  process  has  a  curved  jmint  and  is  more 
irresular. 

Where  the  two  occur  touether  the  s])ecies  is  not  so  common  as  (I 
morhldtiUs,  but  it  is  less  freiiueiit  southward,  and  I  have  received  it 
from  Stmtli  Dakota  without  any  examples  of  (].  morh'nluliH. 

Genus  BLBPTINA,  (iimiioo. 

18r»4.  rJiiotK^e,  Species  (Ji'iii'iiil,  Dcltoidcs,  (!(?. 

IS;-)!*.  Walker,  ("at.  IJrit.  Mus.,  Ilet.ioc.'ia,  .\VI,  11!). 

Head  rather  prominent,  th(m<«h  not  large,  with  a  pointed  tuft  between 
the  antenna'.  Eyes  |)roininent,  globose,  nake*!.  Ocelli  small,  situated 
clo.se  to  the  compound  eye,  rather  w(^ll  r<'mov<Ml  from  the  base  of  the 
antenna*.  Tongue  long  and  strong.  Antenna'  rather  long,  in  the  female 
simple,  with  small  lateral  ciliations;  in  the  male  they  are  either  furnished 
with  longer  lateral  bristles,  with  or  without  other  ciliations,  or  are 
roughly  scaled  only,  Avithoiit  special  modilication  at  basal  tiiird  in  cither 
case.  I'jilpi  long,  rather  closely  scaled,  up  and  back  curved,  sickle- 
sliai)ed,  the  thinl  Joint  pointed  and  not  murh  shorter  than  the  second, 
liody  moderate,  more  robust  in  the  fi'inale;  abdomen  <piite  slenderand 
considerably  exceeding  anal  angle  <)f  secondaries  in  the  male;  more 
robust,  scarely  exceeding  the  secondaries  in  the  lemale.  The  legs  are 
long  and  stout  with  the  usual  spurs-of  the  middle  and  ))osterior  pair. 
The  anterior  legs  of  the  male  are  modified.  The  coxa  is  quite  stout 
with  rather  a  si)arse  clothing  of  specialized  hair  toward  the  tip.  Tro- 
clianter  norma],  not  elongated.  Femur  unusually  long,  untufted.  Til)ia 
very  short,  but  with  a  very  long  process,  which  covers  a  pencil  of  yellow 
or  blackish  hair.  The  tirst  tarsal  Joint  is  long  and  stout,  equaling  in 
length  the  tibial  process,  and  the  other  Joints  are  normal  in  length. 
Wings  proportionate;  venation  normal.  Primaries  elongate,  very  nar 
row  at  base,  in  the  male  set  well  back  on  the  thorax;  the  costa  some- 


*0 


lUlLI.ITIN    IS,   I'MTKI*    STATKS    NAT';^(»"«':^.U«RnM. 


?■]■! 


5d 

what  <'0ii(!iiv(',  tlio  jipcN  poiiit«'<l,  ^  .  .iieiit,  ami  tlu'  oiitrr  tnartrin 
<)l>li(|iu'ly  loiiiHlcd;  in  tlio  leu);'  >iii<'  wiiijfs  iiro  bioador,  the  cdsla  not 
(It^prcsscd,  sdiiictinu's  cv^  >  «i\itlh»  iirclu'tl. 

This  jicims  is  til'; '<»^;  I'll  iiiiirUcd  by  llic  cliiiracti'i's  <,'iv('ii.  Th«».sinij)ly 
cihiitr  iinU'iiiiiii  stnictinc  willioMt  oven  ii  tuft  of  haii  nt  hasiil  third  is 
(|nit<' niiusu;il,  niid  this,  witli  the  very  distinctive  \vin;>  lonn.  innkes  it 
remlily  icroHni/iibh'.  Its  nearest  ally  is  'Motiolita,  in  which  th<'  niiile 
antennii'  and  the  winy  Ibiin  only  are  dilVerent. 

Three  speciesiire  referred  to  the  j^enns;  two  of  tlu'in,  /.'.  coniilrinnlis 
and  />'.  /»f7//<///\,  deeide<lly  variable  tbrnis;  theotiie)',  /.'.  /«/r/'m/',  fairly 
(•onstant  within  my  «'xperiene4>. 

They  ditler  strn<'tnrally,  yet  may  be  easily  <'onfnsed,  snnill  forms  of 
Ii.  cantUriinilis  fre(|uently  donij;  duty  for  /.'.  in/'irior.  In  11.  ruradri- 
nalis  the  inarkin<is  are  always  faiily  obvious  and  usually,  distinet;  the 
nMidbrm  is  oft(Mi  <lnsky  or  blackish,  the  nn-dian  shad*'  is  obvious,  ami 
the  si/e  is  larj^i-r  than  any  />'.  iii/rrior  I  have  <'ver  seen.  The  male 
antenna' ar«'  furnished  with  lateral  bristles.  It.  ////f-r/o/- is  snndler,  asits 
name  iinp<nts,  more  evenly  j;ray  in  color,  sonunvhat  wider  winjjed,  with 
the  inarkinjis  scan^ely  traceable,  and  the  leniform  not  black  marked  in 
any  specinu'U  seen  by  nie.  The  male  antenna'  lack  the  lateral  bristles 
<ni  the  joints,  the  ciliations  scan'cly  as  |)romnient  even  as  in  the  femah^: 
but  there  is  a  rather  evident  serration  and  a  somewhat  marked  covering' 
of  coarse  scales. 

li.  ^^(({(tlis  resembles  />.  caradri nalis  in  maculation  yet  more  closely 
in  some  <'ases,  but  is  of  the  si/e  of  hi/rrior.  The  male  antenna-  diller 
obviously,  the  loufi'er  lateral  bristles  bein}>  reenforced  by  distinet  and 
numerous  ciliations  which  at  once  <listinj;iiisli  tlu^  species.  In  macula- 
tion the  ordinary  spots  are  usually  ])resent  and  distinjjuished  by  a 
broad,  diffuse  marfrin,  the  center,  even  in  the  orbicular,  i)ale.  This 
latter  cliaraeter  is  distinctive  when  it  is  visible.  Sometimes  this  sjjot 
is  wanting',  however,  and  then  it  beccnnes  dillicult  to  distinj;uish  the 
forms  except  by  the  si/e  and  general  habitus. 

ANALYSIS    OK   TUK    SI'KCIES   OK    HKEPTINA. 

Marl<iriffs  naually  «>1)vioiin;  the  ordinary  8))(its  distiiu't. 

Size  larger,  avtrage  28  iniii.;  aiitiiuiia'  of  malt^  with  iiKMhiratc  lateral  bristles, 

CAUADKINAMS. 

Size  HinalL'r,  avorago  I'S  nini. ;  anteiiiin'  of  male  with  longor  and  stonter  lateral 

bristles,  rc('nfor(!(id  hy  nuniorons  ciliations mkihai.is. 

Markings  obsolete,  ordinary  spots  sniali  or  feebly  marked;  antenna'  of  nialo  ciliated 
nnsrely ;  size  small,  average  23  mm ixfekiou. 

Bleptiiia  caradrinalis,  (Jnenoo. 

1854.  Onenc^o,  Species  (ieneral,Deltoides,  (u,  lUepimn. 
18.")!).  Walker.  Cat.  Urit.  ]\Ins.,  Helerocera.  XVI.  IL'lt,  filrpihin. 
1X72.  (irote,  Trans.  Am.  Eiitoniologieal  fcioc.  IV,  d'.i,  lilcptina. 
1«78.  Grote,  Rnll.  U.  S.  Geol.  8urv.,  Ill,  791),  Jihpluia. 

cloiiiiixaHH,  Walker. 
1859.  Walker,  ('at.  Krit.  .Mus.,  lletoi.Kcra,  \VI.  KC).  f/crminia. 
1877.  Grote,  Canadian  Entomologist,  IX,  29,  in:  syn. 


A    UKVISION    or    TIIK    l>r,l/lOII)    >f()Tr[S— SMITFT. 


no 


(fitMiiMl  color  ii  hliijsli  oray,  vuryiii;;  towanl  clay  yellow,  and  with 
rn(»r<'orlcssai)iiiMlaiitl)lack  i»ow<lciiiiMs.  Urad  ami  thorax  -oiuMdorous. 
riiiiiarics  vaiyiii;;  in  shailc.  in  the  iclatixc  aniuimt  ol'  pow«lcrinj;s  anti 
in  the  distinctness  of  the  inaculiition.  Ilasal  lirn'  marked  on  the  <'osta. 
Transverse  antciior  line  sin^-le,  lilackish,  more  or  lessitnlcmved,  irre;;ii- 
lar,  an^-ulated  or  ontciirved  in  the  interspaces,  larely  complete,  and 
often  merely  traceable.  Transverse  posterior  line  .sinj^le,  crenidaled, 
a8  a  whole  (piit*'  evenly  hisinnate,  thon^h  varyinj;  in  the  <lirection  of  a 
sinple  ontcurv*' over  tlie  cell,  withont  a  <'orrespondiny  incurve  (Hi  the 
snitmediaii  inhMspac.e.  TIk^  line  varies  also  in  distinetivein'ss,  and  is 
someliines  rediic(Ml  ton  series  of  veiinlardots.  KSiiblerminal  line  always 
disii net,  often  prominent,  yellowish,  oven,  a  little  outwardly  bent  below 
the  middle,  preceded  bya more  or  less  distinct,  often  prominent,  blaek- 
isli  Ol-  brown  shadiiif?  and  followed  by  ji  similar  but  less  prominent, 
often  obs<det(s  dusky  shading-  which  sometimes  darkens  the  <'ntire  ter- 
minal space. 

A  series  of  v(Minlar  black  terminal  dots.  A  ri£ri<l  or  somewhat  sinu- 
at(%  lu'oad,  dark  or  blackish  median  shade  bainl  oblicpiely  crosses  the 
outer  part  of  the  median  spuce,  involviu};-  the  rcniform.  Orbicular 
l)unctiforni,  small,  varyinji'  IVom  yellow  to  black.  Jieniform  varying 
from  a  nairow  y<'llow  liinnle  to  a  jtrominent  bhu^k  kidney-.^haped  spot 
of  moderate  size.  When  the  mark  is  yellow  it  imiloses  a  small  hhw.k 
dot  interiorly.  Secondaries  paler,  often  a  dirty  whitish  gray  or  yellow, 
with  a  vague  dusky  luiiule,  a  fairly  marked  dusky  median  line,  a  pale 
snbti'rminal  line  often  marked  by  darker  i)recedingoi"tbll()wingv  hades, 
and  a  series  of  more  or  less  evident  dark  or  blackish  tc^niinal  spots. 
IJeneath,  varying  from  luteons  to  smoky,  more  or  less  jtowdery,  with  a 
dark  discal  lunule,  a  dusky  median  line,  and  a  pah^  subteniiinal  line. 
All  these  features  are  variable;  in  the  i)ale  specimens  tlu^  median  line 
is  best  marked  and  the  8ul)terminal  i)ale  line  is  often  obscure;  while  in 
dark  specimens  the  pale,  otten  yellow,  subterminal  line  is  prominent, 
and  the  median  line  is  wanting  on  one  or  both  wings. 

Expanse  of  wings,  25  to  'M)  mm.  =  l  to  1.20  inches. 

Habitat. — Canada  to  Uritish  Columbia,  to  Texas,  to  Arizona,  New 
Mexico,  Col(nad(>.  Texas,  in  April,  .May,  .Tune;  New  York,  June  and 
•Inly;  Delaware,  Kansas,  and  Colorado,  in  June. 

The  species  is  as  common  as  it  is  widely  distributed  and  as  variable 
as  it  is  common.  The  ditl'erence  in  wing  form  between  the  sexes  has 
been  alluded  to,  and  in  addition  the  females  are  usually  more  evenly 
colored,  with  the  ordinary  maculation  less  evident  than  in  the  male. 
The  yellow^  subterminal  line  is  the  most  prominent  feature  in  most 
instances  and  it  is  often  sharply  detincd  by  (listinct  preceding  and  fol- 
lowing dark  shadings.  The  median  lines  are  rarely  jmrniinent,  and 
ipletely  defined.    The  transverse  anterior  varies  in   the 


not  often  eomi 

direction  of  obsolescence  and  in  tho  amount  of  irregularity. 


Tl 


le 


transverse  posterior  varies  from  crenulate  to  a  series  of  venular  dots. 


no 


BULLETIN    IS,  UNITED   STATES   NATIONAL    MUSEUM, 


t-v 


A  (listiiu'l'vc  and  nsnally  quite  iiiiirked  feature  is  the  bioail  Median 
shade,  and  liequently  the  lenifoiin  will  b(*  b'^ack  an«l  form  the  most 
conspicuous  feature  in  the  wing  appearance. 

The  distinctive  structures  of  the  male  antenna^-  and  fore  lepfs  have 
been  already  described  so  fiir  as  essential. 

Bleptina  medialis,  new  sjiecies. 

Oronnd  color  bluish  jjray  over  luteous  brown,  more  or  less  black 
powdered.  Head  a-:ul  thorax  concidoroiis,  immaculate.  I'rimaries 
varyinji'  in  <:int.  Hasal  line  traceable  in  all  specimens  before  me,  vei-y 
distinct  and  black  in  some  cases.  Trainsverse  anterior  line  nearly 
upriiiiit.  irrefjidarly  ontcnrve<I  in  the  interspaces,  variably  evident  but 
traceable  in  all  specimens  before  me.  Transverse  posterior  line  slen 
der,  indistinct,  sometimes  obsolete,  irregular,  but  hardly  crenulated; 
in  course  as  a  whole  outcurved  over  the  cell  ami  a  little  incurved 
inferiorly.  Subterminal  line  ])ale,  yellowish,  even,  a  little  outev.rve«l 
centrally,  defined  by  dark  marginal  lines  on  both  sides  or  set  in  a  dark 
teiininal  shade  which  extends  from  the  middle  of  the  siibterminal  spai'e 
to  the  outer  margin.  A  series  of  black  terminal  <lots,  which  are  some 
times  wanting.  Median  shade  line  mirrow,  brownish,  nearly  parallel 
with  the  transverse  posterior  line,  not  diffuse  nor  prominent,  and  some 
tinu^s  wanting.  Ordinary  s])<)ts  marked  in  nost  of  the  specimens. 
Orbicular  round,  pale-dotted  centrally,  the  delining  ring  brown  or 
blackish  and  (piite  broad,  I{enif<n-m  marked  in  all  the  si)ecimens, 
upright,  consisting  of  concolorous  or  yellowish  central  line  with  a 
broad  black  or  brownish  delining  ring.  Scondaries  smoUy  to  blackish, 
inuuaculate  in  dark  foiins,  in  paler  exam])les  with  an  extra  median 
dusky  and  a  i)ale  subterminal  line.  Ueneath,  dull  snioicy,  powdi^y, 
with  (!on\mon  extra  median  dusky  and  subternnnal  pale  lin('S.  Thes<^ 
are  always  feebly  marked  and  more  or  less  obsolete  (Ui  the  i)rinniries. 

Expanse  of  wings,  21  to  1'4  mm.  =0.8.")  to  O.Do  inch. 

Hahitat.— Seniitropical  Florida. 

Four  specimens  are  bef;;re  me,  equally  divi'led  as  to  sex.  One  male 
was  collected  by  Mr.  TL  A.  Schwarz,  at  Cocoanut  (Jrove,  and  is,  fnun 
the  collection  of  the  United  States  National  jMusenm;  rhe  others  were 
collected  by  JNIr,  Palm  in  the  same  r;^gion.  bur,  the  exact  locality  I  do 
not  have. 

The  species  is  a  well-marked  one  in   the  antennal  structure  of  the 
male,  and  three  of  the  four  specimens  a^e  distinct  by  the  dusky  innnac 
nlate  secondaries,  by  the  contrasting  blackish  outer  portion  of  i)i'i 
niaries,  and  bv  .ae  pale  centeic.l  orbicular.    The  fimrth  si)ecimen,  a 
fenia'e,  resembles  some  forms  (»f  /,*.  ronulrinalis  so  closely  as  to  nuike 
doubt  i)ossd)le.     It  is  smaller,  lurvever,  and  th<^  vestiture  is  closer,  more 
smooth,  the  median  slnulenot  at  all  traceable,  and  the  transverse  poste 
vior  livie  is  not  ercnnlatcd.     The  species  will  probably  be  found  to 
extend  into  the  West  Indies. 


p-v- 


■  •' 


A    REVISION    ()!-'    THE    DEI/ruiU    MOTliS — SMITH. 


ei 


I  do 
■  the 


\d  to 


Bleptiua  inferior,  (irote 
1872.  Grotc,  Tniiis.  Am.  Kiitoiiiulojriijal  Sw..  IV,  01,  lUiptiiiti. 

Darker  and  of  a  ditlercnt  hue  compared  witli  />.  vnrailri units.  Tlie 
reiiiform  is  erei.iiiy  i)ah',  as  is  theorbieidar,  suhobsoletel.v  l)hiek  rin--ed, 
and  shows  an  inferior  bhiek  ineinded  dot.  The  niarkinj>s  of  its  eon- 
{•ener  are  re|>ro(biee<l  by  tliis  snialh'r  species,  bat  less  distinctly.  The 
color  of  the  primaries  is  (►fa  more  bluish  and  darker  gray,  and  they  are 
more  uniformly  coloi-ed,  liardly  darker  shaded  terminally.  The  si'cond- 
aries  are  much  darker,  almost  wholly  blackish;  the  lines  im])erceptil)h! 
or  obsolet*'  Beneath,  both  winys  blackish,  the  subterminal  line  alone 
barely  perceival)le. 

KiXpanse  of  wings,  30  to  L'5  mm.  =()..S()  to  1  inch. 

liAiJiTAT.— Southern  States  to  Texas;  May.  August,  and  October. 

1  have  already  relerred  to  the  fact  that  this  species  has  been  mis- 
taken in  collections,  and  i  am  afraid  I  am  responsibh'  for  some  of  the 
errors.  This  has  led  me  to  gi\e  what  I  now  believe  to  l)e  too  great  a 
geographic  range  to  this  s|)ei'ies  in  my  catalogue,  and  I  am  inclined  to 
doubt  whetiier  it  occurs  in  the  IMiddle  States  at  all.  The  comparative 
description  above  given  is  Mr.  (Jrote's  original  characterization,  and 
jioiiits  out  the  essential  ieatiires  of  the  ornamental  ion.  Tlie  saine 
characters  separate  it  also  from  />,  iiie<li((lis.  Within  my  experience 
the  species  varies  little.  To  the  (|Uite  unusual  antennal  structure  of 
the  male  1  have  already  referr«'d.  The  fore  legs  are  in  all  essentials 
like  those  of  II.  c((ri(drii(aUs,  but  less  de\elopcd.  and  proportionately 
shorter. 

Genus  TETANOLITA,    (irotf. 

1S7I!.  (Jroti!,  Trans.  .\iii.  I'hitoiiioloi^iiMl  Site.,  I\',,'i0."). 

Head  moderate  or  rather  small,  front  with  an  inter  antennal  pointed 
tull.  Eyes  prominent,  globo.se.  Ocelli  distinct,  situated  well  back, 
close  to  the  compound  eye,  and  well  removed  from  the  base  of  the 
antenna'.  Tctngue  moderate.  I'alpi  long,  curved  upward,  and  a  little 
llattened,  (|uite  closely  scaled,  third  joint  long  and  pointed.  Antemne 
iiKMlerate  in  length,  in  the  leinale  simple,  in  the  male  with  lateral  bris- 
tles, varying  in  the  si)ecies,  and  at  basiil  third  with  a  tuftof  hair  which 
is  variably  dt^velope<l  and  (tovrs  two  very  slightly  dilate<l  joints.  Body 
slight,  abdomen  slender,  cylindrical,  reaching  to  or  somewhat  exceed- 
ing the  anal  angle  of  secondaries;  in  the  female,  pointed  at  ttp  and 
somewhat  conic.  Legs  long  and  rather  slender,  closely  scaled,  tlie 
usual  sjuirs  of  the  middle  and  hind  tibiic  long  and  uiieciual.  lathe 
male  the  fore  legs  are  quite  strongly  modilicd.  The  coxa  is  long,  »]uite 
stout,  with  a  j)eculiar  excavation  or  emargination  at  the  outer  Hi«le  at 
liase.  The  trochanter  is  about  one-third  the  length  of  the  femur  and 
combined  with  the  latter  a  trille  longer  than  the  coxa.  The  femur  is 
furnished  with  a  rather  short  pencil  of  hair  attached  at  base,  capable 
of  fanlike  expansion,  and  a  fringing  (»fs[tc(!ialized  scales  laterally  near 


^1, 

it 


62 


nULLETLN    1«,   UMTED    STATES    .NATIONAL    MUSEUM. 


tip.  The  tibia  is  reduced  to  a  lnif»e  process  which  covers  a  mass  of 
specialized  scales,  and  ji  pencil  of  dark  hair.  The  tursi  are  long,  very 
weak,  slender,  and  hardly  functional,  TiM>  wings  vary  somewhat  in 
width,  being  comparatively  elongate,  narrow  and  obtuse  in  7'.  Diinifstilin, 
more  trigonate,  wider,  am!  with  a  marked.a|)ex  in  I'.jloridaiia,  and  with 
an  altogether  broader,  more  ample,  and  frail  a|>p«'aran('e  in  7'.  pdlliffcra. 
In  the  latter  species  the  outer  nnirgin  is  sonjewhat  nnirked  at  the  middh' 
when  the  frfnges  are  defective.  In  all  the  species  the  accessory  cell  is 
wanting  and  veins  7  to  10  are  stalked,  vein  10  arising  very  close  to  the 
base  of  the  stalk.  It  is  altogether  lii<ely,  though. none  of  my  sjtecimens 
show  it,  that  tiie  ae<;essory  cell  may  be  sometimes  present. 

The  three  species  referred  to  this  genus  are  closely  allied  and  yet 
veiy  distinct.     All  the  essential  structural  details  are  similar,  and  yet 
in  minor  points  they   ditter  markedly.     The  dilferenc*'.  in  wing  form 
between  7'.  iiii/ite.saliN  and  T.  pallUjera  is  at  first  sight  very  great,  but 
si>ecimens  of  7'.  jUn'iiUuut  are  completely  int»M-mediate.     In  the  struc 
tare  of  the  male  fore  legs  tlie  species  agree  remarkably.     In  the  str'U' 
tare  of  the  male  antenna'  the   agi'eijment  is  only  in   the  type.      In 
T.  myucsaUx  the  joints  are  rather  even,  cylindrical,  not  marked,  fur 
nislied  with  moderate,  slender,  lateral  bristles,  and  with  little  tufts  of 
tine  hair  interiorly  arising  from  small  tubercles.     The  tuft  isquiti?  long 
and  marked. 

In  T.jloritland  the  Joints  are  much  more  robust  and  shorter,  marked, 
almost  subserrate,  with  coarse  scaly  clothing.  The  lateral  bristles  are 
hardly  more  prominent,  but  the  tuftings  interiorly  consist  of  decidedly 
longer  hair. 

In  7'.  pdlliurra  the  Joints  are  yet  monr  marked  above  the  tuft  which 
in  this  spe(;ies  is  much  reduced;  thescal,\-  vestiture  fonus  two  elevateil 
rings  on  ea(^h  joi'it  and  the.  lateral  bristles.are  much. reduced  in  leuiith 
and  thickness, 

In  color  7'.  ninncsaliii  is  usually  smcdvy  t<»  blackish  ov«'r  a  somewhat 
liiteous  b;'.so,  whicdi  occasionally  ap|)ears  (juite  «listinctly. 

T.tlvrUhiim  is  luteous,  with  smoky  powderings  which  darken  the 
terminal  portion  of  both  wings. 

7'. 7w/////<'/7Ms  paler,  with  Inown  [lowderings  anange<l  mindi  as  in 
the  preceding  species,  but  frequently  with  a  more  yellow  sulVusicm. 

In  maculation  the  three  species  agree  most  remarkably,  so  a  descrij) 
tion  of  one  will  practically  answer  for  all. 


ANAl.VMh    Ol     TIIK    SI'EC  Ii:S    (ll       I  11  lANOMTA. 

L'oldr  Hiiioky  to  bliukisli;  lualf.  anteiuiii  witli  Joiiit.s  not  marked,  lateral  Idistles 
inoderute mvnksai.is. 

Color  luteous;  male    antenna  witli  .joiutu  MiihHenate.  lateral   lirislles  well  ni.irked. 

ii.(Htir>AXA 

Color  liitoous;  male  antenna  witli  JointH  serrate  aliuve  tlio  mneli-rednced  tnt't.  the 
lateral  lirit^tles  Ninall i-ai.mcjkha. 


A    REVISION    OF   THE    DELTOID    MOTHS — SMITH. 


(J3 


Tetauolita  myiiebalis,  Walker. 

1859.   Walker,  Cat.  Ihit.  .Miis  ,  McteroctTa,  XIX,  S60,  lilejHinu. 
18'.)a.  SiiiiMi,  Bull.  i:.  S.  N,it.  Mils.,  41,  389,  TeUiuoUtd. 

lixaliH,  (iiote. 
1873.  Grotc,  Trans.  Am    Entoniological  Soc,  IV,  30G,  TctatmUta. 
1893.  Smith,  Hull.  U.  S.  Nat.  Miis.,  II,  ;{89,  i)r  svii. 

Silky  bliickisli.  Priinarios  with  ;i  faint  i)urpli.sli  reflection.  Trans- 
verse anterior  line  indi.stinct,  linear,  darker  tlum  the  <j;iouT)d  color  of 
the  winj;,  medially  with  a  ronnded  outward  inelinatioii.  Jveiiiforni 
clear  pale-yellowish  m  both  my  specimens,  witiiout  included  dots,  indis- 
tinctly darker  ringed,  contrasting.  Transverse  posterior  line  linear, 
dark,  linely  dentate,  indicated  on  costa  by  pale  scales;  a  little  jnojected 
opposite  the  cell.  Subterminal  line  distinctly  indicated  by  small  whitish 
lunulated  in(;lnded  dots,  a  little  outwardly  i)r()|ected  over  median  nerv- 
ulcN.  A  very  fine  terminal  line;  tiinges  coiu^oloroiis,  neatly  interrui)ted 
witli  pale  scales.  The  neat  (nnamentatioii  may  be  clearly  seen  against 
the  almost  uniform  blackish  ground  of  the  piimaries,  with  attention. 
Mind  wings  much  paler,  smoky-whitisli,  with  two  darker  median  lines 
approximating  toward  internal  margin,  and  a  faint  discal  mark;  ter- 
minal line  and  fringes  as  on  primaries.  Deneath  blackish,  paling 
toward  internal  margins,  witli  distinct  discal  nuirks  and  double,  neatly 
and  minutely  dentated  transverse  lines.  Head  and  appendages,  tho- 
rax and  legs  outwardly  blackish,  concolorous;  abdomen  i)aler.  Tarsi 
(lotted  with  p«ale  scales. 

b^xpanse  ot  wings,  L>0  to  2'.\  mm.=--(),SO  to  0.110  imdi. 

[lAiJiTAT.— Middle,  Central,  and  Southern  States;  Texas  in  March, 
May,  and  October;  Illinois  in  .Inly. 

Tiie  si»ecies  is  not  common,  except  in  the  souLnern  i)ortion  of  its 
range,  being  most  often  received  from  Texas.  It  varies  lit  Je,  except 
in  the  distinctness  of  the  nuKailation,  the  form  described  by  Mr.  Grote 
being  a  well-marked  typ»  which  is  somewhat  less  common.  Usually 
the  yellow  K'liiforin  is  (niite  obvious,  but  sometimes  even  this  disap- 
pears. A  }»oi'it  not  mentioned  by  Mr.  (irote  is  the  tact  that  the  black- 
ish abdomeu  i.   usually  narrowly  pale  annulate. 


Tetanolita  floridana.  new  Hpecies. 

(Iround  color  a  pale  luteous,  with  variably  distinct  smoky  powder- 
iiigs.  Head  concolorous  with  the  darker,  the  thorax  with  the  paler 
parts  of  the  wing;  abdomen  somewhat  more  gray,  the  edges  of  the  seg- 
ments i>aler  ringed.  Primaries  with  tlte  markings  ill  defined,  nune  or 
less  darkened  over  the  costal  region,  tlie  outer  part  of  sul)t<'rminal  and 
all  the  terminal  space  dusky.  Uasal  line  faintly  indicated  in  some 
si»ecimens.  Transverse  anterior  line  single,  blackish,  a  large  outcurve 
III  thesnbmedian  interspace,  else  nearly  upright.  Transverse  posterior 
line  slender,  dusky,  creniilated.  ol>li(!ue.  iieaily  parallel  with  the.  outer 
margin.     Subterininal  line  pale,  more  or  les-  interrupted,  parallel   with 


64 


HULLKTIN    .If<,   IJNITKI)    STATES    NAl'lUNAL    MUSKUM. 


the  outer  marj-iii  or  a  little  simiated.  eini)liasize(l  by  the  smoky  shade 
throujih  which  it  runs.  A  series  of  black  terminal  liuiules,  frin^^es 
pale,  cut  with  smoky  brown.  There  is  a  ditluse,  obliciue,  broad,  smoky, 
median  shade,  whicli  is  variably  evident  and  iisnally  involves  the  reiii 
form.  Orbicular  a  small  yellow  dot,  which  is  never  iirominent  and 
often  obsolete. '  Kenifoiin  a  small  yellowish  line  or  lunule,  sometimes 
almost  obscured  by  the  dusky  median  shade.  Secondaries  j,nay  or 
whitish  at  base,  darkenin}-  to  smoky  or  blackish  (mtwardly;  with  an 
extra  median,  rather  even,  darker  line,  and  a  ])ale,  irrej;ularly  denticu- 
late, subterminal  line,  tlirouj;ii  the  darker  outer  re{.!:ion.  A  series  of 
black  terminal  lunules.  Ueneath  jjray,  black  i)owdered,  darkeniiif>out 
war(lly;with  a  more  or  less  conqdete  dusky  extra  median  line  and  a 
more  evident,  pale,  subterminal  line,  repeating-  the  upper  side  on  both 
wings.  A  more  or  less  marked  discal  lunule,  sometimes  obsolete  on 
the  pr'inaries. 

Expanse  ot  wings,  2(1  to  21  mm, =0.80  to  0.85  inch. 

Habitat.— Florida,  Archer,  in  March  and  April;  Texas,  in  March. 

IJoth  sexes  are  at  hand,  and  are  similar  in  ai)pearance.  It  haw  been 
impossible  for  me  to  tiiid  a  single  permanent  diilerenre  in  marking 
between  this  spe(Mes  and  the  two  others.  It  is  i)aler  than  T.  limlis  and 
darker  than  7'.  i)<illi(jcrti,  wider  winged  than  the  fornuir,  narrower  than 
the  latter.  The  structural  ditlereuces  have  been  already  noted,  and 
with  both  sexes  at  hand  no  trouble  need  be  found  in  recognizing  the 
species.  It  is  i)robably  not  rare  in  its  range,  which,  thus  far,  is  con 
lined  to  Floridaand  Texas,  It  will  probably  be  found  in  theotherGult 
States.  This  is  the  species,  a  specimen  of  which  I  rather  doubtfully 
reterre<l  to  T.  imUKjoa  when  describing  the  latter  species,  and  whose 
distinctness  is  again  suggested  in  IJulletin  i-l,  United  States  National 
Museum,  ;W5. 

The  types  are  in  the  collection  of  the  United  States  National  Museum. 

Tetanolita  palligcra  Simtli. 
ISHl.  Siiiitli,  liiill.  liklii.  Kiitonioldgical  Soc,  VII,  (J,  IlderoijraimiM. 

(Iround  color  a  dirty  powdery  luteous,  with  a  more  yellowish  sutlu 
sion  in  some  specimens.  Head  and  thorax  coiicolorous,  the  ab<h)men 
somewhat  ])aler,  and  with  rather  feebly  marked  ])aler  wings.  Primaries 
witli  the  markings  i',11  ol)scured,  the  subterminal  line  which  runs 
through  a  <larker  terminal  space  the  only  distinct  feature  of  the  wing. 
The  markings  are  like  those  described  for  the  i»revious  si)eeies, 
aiul  the  present  <lillers  mainly  in  its  larger  size,  paler  ground,  aud  more 
obscure  macula tion. 

Expanse  of  wings,  21  to  2;")  mm.       O.So  to  1  inch. 

Uahitat.— California:   Napa  County;  Pauamint  Valley  in  Aprii. 
Knightly  Valley. 

Five  specimens  are  before  me,  all  of  them  from  the  Nati«>nal  Museum 
collection.     Otliers  are  iii  the  Edwards  collection  in  the  American 


A    KEVISION    OF    THE    DELTOID    MOTHS — SMITH. 


65 


Museum  of  Natiuiii  History.  The  specimen  from  Taiiamiiit  Valley 
comes  nearest  to  the  Floridian  species  in  ai»pearancc;  but  tiie  more 
nmple  wiiifts  will  auilice  to  (listiiifjiiish  the  form,  even  from  the  most 
similar  of  the  other.  The  structural  characters  previously  described 
are,  of  course,  decisive  whenever  a  male  is  at  hand.  In  somewhat 
rubbed  specimens,  in  which  the  fringes  ar<^  defective,  the  outer  margin 
of  the  primaries  seems  slightly  angn.lated  at  the  middle,  and  this  umst 
he  ujy  excuse  for  referring  the  species  to  Hvterogmmma  in  the  tirst 
(lescrii)tion  from  somewhat  scant  material.  It  is  probable  that  iu  its 
range  the  species  will  be  found  not  uncommon. 

Genus  R  E  N I  A,  Giumoc. 

185t.  Guem'-e,  Species  Genoral,  Deltoides,  80. 

18.")!).  Walker,  Cat.  Hiit.  Mus.  Hftcroccra,  XVI,  117. 

1877.  Grotc,  IJiiU.  U.  S.  Geol.  Siirv.,  Ill,  119. 

Head  moderate,  sometimes  ([uite  prominent.  Eyes  large,  naked, 
globose.  Ocelli  di.stinct,  set  well  back  from  the  base  of  the  antenuie 
and  close  to  the  compound  eye.  Front  with  a  pointed  interantennal 
tuft.  Tongue  moderate.  Palpi  somewhat  variable,  laterally  compressed, 
directed  straight  forward,  obliijuely  as(;ending  or  even  recurved,  sickle- 
shaped;  the  second  Joint  longest,  clothed  on  the  upper  side  with  upright 
scales,  sometimes  evenly,  sometimes  massed  toward  the  middle,  making 
it  seem  higher.  The  tei-minal  Joint  varies  considerably  in  length, 
always  set  into  the  second  at  a  small  angle,  and  this  also  quite 
usually  clothed  with  upright  scales,  which  are  longest  at  the  middle, 
giving  the  Joint  a  triangular  appearance  when  \iewed  trom  the  side. 
Antenna'  long  or  moderate;  in  the  female  simple,  with  line  lateral  cilia- 
tions;  in  the  male  with  distinct,  though  not  very  long,  lateral  bristles. 
Ueyond  the  middle,  in  this  sex,  i.s  a  prominent  pointed  tuft  of  hair  on 
the  outer  side,  which  conceals  an  elongated  curved  Joint,  which  in  turn 
protects  a  tuft  or  pencil  of  specializtnl  liair.  IJeyond  this  point  the 
joints  of  the  antenna'  become  shorter,  somewhat  serrate,  the  lateral 
bristles  shorter,  and  there  is  a  very  distinct  temlency  to  a  curling  or 
coiling  of  the  tip.  I>o<ly  moderate,  abdomen  slen<h'r,  cylindrical, 
somewhat  exceeding  the  anal  angle  of  the  secondaries.  The  legs  are 
long  and  moderately  stout,  the  tibia  with  the  noi'inal  sj/urs.  In  the 
:iiale  the  fore  h'gs  are  modihe<l,  the  UKxlilication  contlncKl  to  the  tibia 
and  tarsi.  The  tibia  is  very  short,  anteriorly  produced  into  a  long 
process  which  covers  the  first  tarsal  joint,  concealing  specialized  seniles, 
lint  no  tufts  oi-  i)encils  of  hair.  The  wings  are  large;  the  prinmries 
trigonate,  |)ointed  at  the  apex,  the  outer  margin  oblicpie  or  arquate, 
<(>nsiderable  variation  (existing  in  this  feature.  The  venation  is  some- 
what abnormal,  lacking  the  accessory  cell  in  all  the  species  and  in  all 
the  specimens  examined,  though  I  would  not  be  surpri.sed,  from  what  F 
liave  seen,  to  lind  exceptional  specimens  with  a  nioi  d  or  less  perfectly 
<ieveh)ped  accessory  cell.  In  most  instances  veins  7  to  10  are  from  one 
^talk;  but  (urcasionally  7  is  free. 
78<)2— No.  48 5 


w 


66 


BULLETIN    18,   UNITED    STATES    NATIONAL    MUSEUM. 


IM. 


This  yciiiis  is  an  extremely  interesting  <nie.  There  arc  a  number  of 
species,  and  while  tiiey  beUmg  together,  without  doubt,  there  is  a  con 
sidevable  ii mount  of  variation.  In  all,  however,  the  peculiarity  of  the 
male  antenna  is  marked,  and  in  general  the  \ving  form  is  similar.  In 
the  palpi  there  is  a  great  range  of  variation,  ami  while  the  type  found 
in  Hcrminia  is  controlling,  yet  in  R.  centralis  the  ui)right  scales  arc 
not  prominent,  and  we  get  a  form  dangerously  like  Tetanolita,  which 
this  species  also  resend)les  in  color,  in  markings,  and  to  some  extent 
in  wing  form.  In  R.  salusaUs  {brcviostraUs)  a  sexuiil  peculiarity  is 
found  in  the  male  in  the  f(U'm  of  a  truncated  tuft  or  brush  of  hairlikc 
scales  on  the  ujtper  and  inner  side.  The  structure  of  tlu!  male  fore  leu 
is  pra(;tically  alike  in  all  the  species.  Coxa,  trochanter,  and  fenuu'  are 
normal,  or  nearly  so;  tlie  tibia  is  short,  but  i)roduced  into  a  long 
process  anteriorly,  wiiliout  covering  any  tufts  or  i)encils  of  hair,  and 
therefore  correspondingly  narrow. 

All  the  described  species  are  known  to  me,  and  1  have  found  two 
others  not  yet  characterized  among  the  material  before  uw.  R.  f<((lus<(lis, 
better  known  as  R.  hrerirosfniUs,  differs  at  once  from  all  the  other 
species  by  the  short  palpi  of  the  male,  which  also  have  a  truncated 
tuft  of  hair  on  the  upper  side  of  the  middle  Joint,  and  have  the  terminal 
Joint  short,  the  entire  mend)er  oblique.  The  primaries  are  distim-tly 
pointed  at  the  apex,  and  the  outer  margin  is  obli({ue  and  long,  in 
color  the  male  is  |»ale  luteous,  and  the  ordinary  lines  are  puiu;tifonii 
or  crenulated. 

The  renminder  of  the  species  have  the  |)alpi  longer  in  both  sexes, 
without  special  mo<litication  in  the  nmle,  and  they  separate  into  twn 
«listinct  series  on  the  chara<;ter  of  the  transverse  posterior  line,  a> 
pointed  out  by  Mr.  (J rote.  In  the  majority  of  the  s])ecies  it  is  irregnlar, 
dentate,  crenulate.  punctitbrm,  or  otherwise  mark«'d;  but  in  two  s[)ecie.s 
R.J}((ri])uiufali.s  and  R.  pulrcrosidis.  it  is  even,  ])ale,  and  preceded  by 
a  more  or  less  marked,  also  even,  dusky  line. 

Of  the  first  series,  R.  diHcohtralis  is  much  the  largest,  exceeding  in 
si/e  indeed  all  others  of  the  genus,  and  is  thus  recognizable  by  th;it 
character  alone.  It  is  also  mucll  the  most  variable,  rivaling  Zmichuj 
iiafJia  iH'r'Kjdia  in  its  protean  changes,  and  we  find  every  gradation  from 
a  uniform  tint,  in  which  none  of  the  markings  are  traceable,  to  a  strongly 
contrasting  tyi)e,  in  which  all  the  lines  are  prominent  and  all  the  spac.  s 
discolorous.  A  prominent  feature  is  found  in  the  nearly  continudiis 
snbternunal  line,  marked  by  both  a  i)receding  and  a  following  darker 
shading  in  most  instances. 

The  other  si»ecies  of  this  secticm  are  decidedly  smaller,  never  van  i 
ble,  and  again  divided  on  wing  form.     R.  fniteriiolis,  R.  mhriulis,  aid 
R.  larndis  have  longer,  more  pointed  fore  wings,  the  apex  marked,  the 
onter  margin  (piite  obli(|neand  with  a  little  tendency  to  incurve  below 
the  tip  of  the  wing.  R.  difosaliN  and  R.fnctionalts  have  the  fore  win-s 


A   REVISION   OF   THE   Dl-SLTOID    MOTHS — SMITH. 


67 


sliortor,  less  trigoiiate,  broader  toward  base,  tln^  outer  inar^'iii  much 
less  <)bli(iue,  and  the  apices  scarcely  rectangular  and  not  in  the  least 
pointed. 

Rfmtrrnalin  varies  from  pale  luteous  in  tln^  male  to  light-red  brown 
in  the  female.  Tlu^  ai)pearance  of  the  male  is  very  suggestive  of  a 
>nmll  li.  salusalifi  {brcrirosfndis);  but  the  i)iilpi  show  tlie  ditterence  at 
■A  glance,  being  straight  and  loug  without  sexual  moditicatiou.  The 
lemale  diti'ers  nmrkedly  from  the  male  in  color,  this  sexual  difference 
recurring  in  this  genus  only  in  A',  mhisalis,  and  tiie  maculation,  which 
ill  the  male  is  (piite  distinct,  is  almost  lost  in  the  female,  in  Avhich  the 
subtermiual  line  alone  temains  mark«Ml. 

h'.  HohriahH  {rcHfricfaiifs)  is  smoky  over  luteous,  varying  to  bhu^kish, 
with  the  maculation  obscure,  and  A',  larealis  '-esembles  it  except  in 
size,  being  somewhat  hirger  and  in  having  a  somewhat  paler,  more 
purplish  tinge  to  the  primaries.  According  to  Mv.  Grote,  "  It  will  be 
easy  to  distinguish  R.  resfrietalis  from  R.  larralh^  \yith  which  it  agrees 
in  ornamentation  and  general  tint,  if  we  observe  the  greatly  shorter 
and  recurved  labial  palpi  of  the  female.  In  R.  lariudis  the  feniale 
labial  palpi  are  extended  forwav<l.  and  are  as  long  as  in  A',  hrerirostra- 
iis.  The  antennas  is  shorter  from  the  base  to  tiietuft  in  A',  rcstrictalis 
thanin  A*,  larvalis;  the  form  is  narrower,  the  general  color  darker,  niore 
glossy."  Hotli  the  antennal  and  |>ali)al  characters  pointed  out  are 
unreliable,  and  while  they  hold  in  ])erhapsa  considerable  prop((rtion  of 
cases,  yet  1  have  seen  instances  in  tvhich  they  were  exactly  reversed, 
and  the  examiuation  of  the  large  series  of  specimens  of  all  species 
now  before  me  shows  that  there  is  a  sulliciently  great  range  of  varia- 
tion, especially  in  the  palpi,  to  render  their  use  for  specific  characters 
at  least  unsafe. 

R.  cHtostilis  {aentralin)  is  another  smoky,  rather  more  bhuikish  si)e- 
cies,  but  the  wing  form  already  mentioned  separates  it  from  those  imme- 
diately preceding.  The  juilpi  are  more  evenly  clothed  than  usual  in 
the  genus  and  are  more  or  less  sickle  shaped  in  both  sexes.  The  spe- 
cies strongly  resembles  Tefanolita  niyiicsdlis  on  a  much  larger  scale, 
and  is  quite  different  from  any  other  of  its  congeners. 

R.  factiosalis  {plcnilinealis)  agrees  with  R.  clitosidis  in  wing  form, 
but  ditfers  in  all  other  characters.  It  is  leather  brown  in  color,  vary- 
ing to  a  deeper  shade,  with  nu)re  or  less  black  powdering,.  The  macu- 
lation is  variably  distinct,  and  sometimes  tlie  spaces  contrast  more  or 
less,  varying  to  an  almost  uniform  leather  brown  with  the  maculation 
obscured,  as  in  the  form  named  A'.  nluUilin  by  Mr.  (Jrote. 

The  remaining  s])ecies  are  those  already  separated  off  on  the  even, 
pale,  transverse  posterior  line  of  the  primaries,  and  they  are  closely 
lelated. 

R.flavipunetaUs  is  a  well  marked  species,  and  the  maculation  is  in 
most  cases  distinct,  the  transverse^  ])osterior  line  i)rominent  and  co:i- 
Umied  somewhat  more  faintly  across  the  secoiularies. 


■  ■'  ,":'■'- 


68  HULLKTIN   48,  UNITKI)    STATKS    NATIONAL    MUSEUM. 

li.  pulwmmlh  is  ()>)S('iiivly  iiiiiiked,  iiltogethcr  iiioro  fViiil,  with 
longer  palpi,  more  shMuler  antenna',  and  more-  pointed  piinniries.  The 
wings  are  entirely  obscnrod  by  smoky  ])owderings,  and  the  niarkinii- 
of  the  primaries  are  traced  with  <lifflculty,  while  on  the  secondaries 
they  are  often  scarcely  obvions. 

ANALYSIS    OK    TIIIC    Sl'l'.t  IKS    OK    KKNIA. 

1.  riiljii  ol'iiialo  short,  ol)li<|uo;  iiiiddlo  Joint  with  ii  Hpocializod  tuft  or  brush  of  hair; 

tta-iiiiiiiil  joint  siiort sai-csai.i^. 

I'aipi  long  in  both  stsxes;  without  specialized  tuft  of  hair;  terminal  joint  at  Icam 
luodt'rato - . 

2.  Transverse  posterior  lino  nion^  or  less  denticulate,  narrow,  blackish,  not  accom- 

panied by  a  liale  shaibs  often  obsolete  or  bandy  traceable ;! 

Transverse  jtosterior  line  pale,  even,  preceded  by  a  narrow,  even,  dusky  Ihio  ..  S. 

3.  Primaries  trigonate,  with  the  apex  somewhat  produced  acute;  outer  margin  Ion;;. 

a  little  excavated  below,  and  very  obli(|Ue I. 

Primaries  shorter  and  broader;  apex  rectangular;  outer  nuirgin  not  ex(;avat»Ml, 
shorter,  and  only  a  little  oblique : 7. 

4.  Size  large;  snbtertninal  line  distinct,  outwardly  angulated  at  i.s  middle,  precedeil 

or  followed,  or  both,  by  a  dusky  defining  siiade discoi.okai.is. 

Size  moderate  or  small;  subterminal  line  pnnctiform,  i)receded  by  variably  dis- 
tinct spots  rather  than  shades ">. 

5.  Color  luteous  to  leather  l>rown Kit  vtkuxai.is. 

(^olor  smoky  or  gray  om'X  luteous (1. 

6.  Size  smaller ;  expanse,  'l'i-2(\  mm soniti a  i.is. 

Size  larger;  expanse,  2S-;)(),mm i.akvai.is. 

7.  Color  smoky  or  blacikish c'l.rrosAi.is. 

Color  leather  brown  to  luteous kactiosam-. 

8.  Markings  fairly  distinct;  secondaries  crossed  by  a  ])ale  line ki.avm'Uxctai.is. 

Markings  obscure,  jiowdery;  secondaries  almost  immaculate I'Ulvkkosali.'- 

Renia  salusalis,  Walker. 

185!>.  Walker,  Cat.  Hrit.  Mus.,  Ileterocera,  XVI,  107,  IJerminia, 
1893.  Smith,  JJnll.  U.  S.  Nat.  Mus.,  44,  387,  Hciiia. 
brevirontralis,  Groto. 

1872.  Grotc,  Trans.  Am.  Entomological  Soc,  IV,  25,  lienia. 

1873.  Grote,  Trans.  Am.  Entomological  Soc.,  IV,  3051.  pi.  i,  tl'.  id,  !»2,  Itcnia. 
1893.  Smith,  Hull.  U.  S.  Nat.  Mus.,  44,  387,  i)r.  syn. 

(ironnd  color  luteous,  varying  in  shade,  with  black  pcnvderings, 
Head  and  thorax  concolorous.  Primaries  with  the  markings  distinct 
in  the  male,  a  little  obscure  in  the  female,  liasal  line  punctiforni. 
traceable  in  the  specimeiis  before  me.  Ti-ansverse  anterior  line  brown. 
u]»right,  or  nearly  so,  a  little  irregular.  Transverse  posterior  liiif 
creuulated,  ratlier  evenly  bisinuate  as  a  whole,  and  very  oblique 
nearly  i)arallel  with  the  outer  margin.  The  line  is  sometimes  reducc'l 
to  a  series  <»f  venidar  dots.  Subterminal  line  irregular,  pale,  obscure, 
marked  by  bla(;kish  preceding  spots  varying  in  nund)er  and  distinci 
ness,  and  sometimes  followed  by  less  evident  marks  of  the  same  chai 
acti'r.  A  series  of  black  vcnnlar  <lots.  A  diffuse,  oblir^ue,  bro\\  i 
median  siiade  becomes  evident  below  the  reuiform    and    often  coi' 


A   REVISION    OK    THK    DEI/rOU)    MOTHS — SMITH. 


69 


si)i(!UOUs  at  the  inner  niarjjjin.  Orbicnliiv  marked  as  a  small,  (ilear 
yellow  spot,  which  is  sonn'times  lost.  Iteniform  npiij-lit,  narrow,  some- 
what eonstrietcd  centrally,  yellow,  with  a  black  dot  at  each  extremity. 
SecMHidaries  paler,  but  rather  mort^  smoky,  with  a  distinct  dusky  extra 
median  line  continuous  with  tiie  transverse  posterior  of  primaries, 
and  a  pale  subterminal  line  continuous  with  that  of  the  prinuiries, 
Mini  sometimes  marked  by  darker  sha(liuj;s,  and,  imlced,  as  a  rnU'  the 
wiufi's  darken  <mtwardly,  relievinj;-  the  line  somewhat.  A  series  of 
lilack  terminal  dots,  sometiiiu^s  forminu  iin  interrupted  termimd  line. 
Ileneath  with  ocherous  powderinji^s;  all  winys  with  a  discal  mark,  a 
browtj  extra  median,  a  pale  subteiininal  and  a  bhu^kish  terminal  line, 
tiie  latter  interrupted  and  sonunvhat  ])unctiform. 

l'iXi)anse  of  winjjs,  20  to  .'»2  mm.      0.80  to  1.25  inches. 

Habitat. — Eastern,  .Middle,  and  Central  States;  (leorjria,  Alabama, 
('olorado. 

The  essential  characters  of  the  species  have  been  jwinted  out  in  the 
inti'oductory  reunirks.  The  male  seems  to  have  the  power  of  expand- 
\\\^  in  every  direction  the  i)alpal  tuft.  The  palpi  of  the  female  ar(^  nor- 
mal and  «piite  lonji'.  In  this  sex  the  tendency  is  to  a  more  reddish 
«> round  color  and  less  evident  unicul.ition.  In  a  small  nuile  from  (leorj^ia 
the  reniforni  is  prominently  black  and  the  other  markings  are  reduced 
and  punctiform. 

The  other  sexual  characters  of  antenna"  and  forelegs  agree  with  those 


of  the  genus. 


Reuia  diacoloralis,  Guont^c. 


1851.  GueiK^o,  Species  (Jeneral,  Deltoidcs,  S2,  licnin. 

1872.  (irote,  Trans.  Am.  Entoinolojfical  Soc,  IV,  21,  Itiu'ui. 

faUacialis,  Walker. 
1859,  Walker,  Cat.  Brit.  Mns.,  Heterocera,  XVT,  :W,  Ifiiprna. 
1872.  Grote,  Trans.  Am.  Entomologit  al  Soe.,  I\',  2."),  pr.  syn. 
1893.  Smith,  Bull.  U.  S.  Nat.  Mns.,  II.  .'^^7. 

t/enevolin,  Walker. 
1859.  Walker,  Cat.  Brit.  Mns.,  Heterocera.  X\l,  29,  ll;ipvna. 
1893.  Smith,  Bnll.  U.  S.  Nat.  Mns.,  \\,  38(5,  pr.  syn. 

thrdj-alis,  Walker. 
1859.  Walker,  Cat.  Brit.  Mns..  Heterocera,  XVI,  l()!l,  Ilcrwinia. 
1891.  Smith,  List  Le]ii<loptera,  63,  i)r.  syn. 

Ground  color  varying  from  i>ale  luteous  to  dark  brown,  always 
))(>wdery.  Head  and  thorax  always  of  the  prevailing  color.  Prinuiries 
with  the  subterminal  line  distinct  in  nu)st  in.stances,  but  else  varying 
in  every  possible  direction.  liasal  line  evident,  broad,  brown.  Trans- 
verse anterior  line  outcurved  in  the  inter.spaces  and  as  a  whole  a  little 
oiitcurved.  Transverse  posterior  line  irregularly  dentate  and  crenate 
and  irregularly  sinuate  and  inwardly  oblique  in  its  g(!neral  course. 
Subterminal  line  pale,  a  litthi  irregular,  always  with  a  marked  outward 
angle  at  about  the  middle,  preceded  or  followed,  or  both,  by  a  darker 


^ii'« 


SI  I 


ade,  often  more  prominent  before  the  angulation.    A  series  of  venu- 


70 


mJLLKTIN    18,  UNITi:!)    STATKS   NATIONAL    MUHKUM. 


liir  teniiiiiiil  dots.  Tlicro  is  a  \mr.u\,  oblhiuo,  soinewbnf  ditlnsc  in<'(li;iii 
shiule.  Oibiciilar  siiiiill,  round,  y«'llow.  KtMiiform  upiij-ht,  iiiirrow. 
yellow,  \  itli  black  dots  at  I'acli  extremity,  somcliines  conncctiMl  by  a 
(lark  lino.  Secondaries  varying'  fVoni  pale  yellowish  juray  to  almost 
black,  will-  a  vajiue  dnsky  median  and  pale  subterminal  line  and  :i 
series  of  blacki.sli  terminal  lunnles.  lieneatb  more  coarsely  p(nvdery: 
all  win^s  willi  a  discal  Innnle.  a  broad,  c(mimon,  brown  median  line,  a 
pal<^  subtt^rminal  line,  and  a  series  of  dark  t<'rminal  lunnles. 

lOxpanse  of  winjis.  ."{."i  to  10  n\m.  =  l.;i2  to  !.<!(>  inclies. 

IIAUITAT.— ('anadato  Virj;inia;  Central  States;  New  York  and  Dela 
ware  in  July;   District  of  Cobnnbia  in  An<;-ust. 

The  above  description  applies  to  an  evenly  colored  specimen  in  w  liicli 
all  tlie  macnlation  is  well  defined :  but  as  a  matter  of  fact  sucli  s  »eci 
mens  are  tlie  exception  rather  than  the  rule.  \'ery  pale  and  very  (inik 
si>eciinens  tend  to  an  obsolescence  of  all  macnlation,  and  only  inter 
mediate  forms  are  apt  to  have  it  evenly  defined,  liesides  this  ran^eot 
variation  in  evenly  colore*]  forms,  there  is  a  decided  tendency,  e(piall\ 
marked  in  both  sexes  in  my  experience,  toward  disc(doration.  Tlir 
median  space  may  be  dark  and  all  eN"  contrastiii;>'  pale,  or  the  opposite 
maybe  the  case,  or  only  one  space  m,  .,  be  affected,  and  this  is  as  likely 
to  be  the  basal  as  the  terminal.  Yet,  witlial,  the  character  of  tlic 
species  chanj^es  little,  and  its  size  ahuie  will  serve  for  its  reco}initi(tii. 
In  the  male  the  palpi  are  curved;  the  vestiture  of  the  middle  .joint  i< 
therefore  lonj-er  at  tlie  middle  than  at  the  base,  while  in  the  fennile  tlic 
palpi  are  straight  and  the  scales  are  even. 

The    sjiecies   is   quitch    widely   distiil>uted    and    is   not   rare.     The 
sexual  modilications  offer  nothing;  out  of  the  common. 

Renia  fiaternalis,  new  .si)ccies. 

Ground  color  in  the  male  a  jiale  luteous  .yray;  in  the  female  ycUowisli 
red-brown.  Head  and  thorax  concolorous  with  primaries.  Primaries 
in  the  male  with  the  macnlation  fairly  well  marked;  in  the  female  tlie 
subterminal  line  only  is  detined  in  most  instances.  Basal  line  indicateil 
on  the  costa.  Transverse  anterior  line  sin<i>le,  blackish,  irregulail.\ 
outcurved,  and  outwardly  exseited  in  the  interspaces.  Transver-e 
])osterior  line  linely  crennlated,  often  piiiuitiform,  black,  nearly  jiarallel 
with  theouter  margin,  or  <»iily  a  little  sinuated.  Sal)terminal  linepiiiK 
tiforni,  a  litue  <mtwai'dly  bent  about  the  niiiUlle,  consisting'  of  whiti  li 
dots  set  in  a  more  or  less  marke<l  lead-colored  or  black  shading.  A 
series  of  black  terminal  dots  or  marks.  A  rather  narrow,  indefim  il. 
median  shade  line,  visible  only  below  the  median  vein.  Orbicula-  ;i 
small  yellow  dot.  Keniform  narrow,  upright,  yellow,  with  a  black  (int 
at  each  extremity.  Secondaries  somewhat  paler  than  primaries,  w  tli 
a  dusky  median  line  and  a  i)ale  subterminal  line,  which  is  sometiiiM's 
absorbed  in  a  darker  shading  whi(!h  precedes  it.  Beneath  iiicif 
powdery;  both  wings  with  discal  s])ots,  a  usually  distinct  dusky  medniii 
hue,  and  an  (often  wanting)  pale  subterminal  line. 


^TV  ^*'**^  ' 


A    UKV!HI()N    OF   TIIK    DKI/roiI)    MOTHS — SMITH. 


71 


IH'l;i 


Tl 


IC 


?*, 


3i 


'■'■■A 


I'ixpiinso  of  wiiif^s,  !.•;{  fo  L»7  iiiin.  =::.  (».!>(►  to  l.OS  inches. 

IIAIHTAT.— F|oii(la,Ar<lieriiiFt'l>niiiiy,  lUnk  Lcdj-eiii  Ajtril:  Siiviiii 

llitll,  (iH. 

Twelve,  specimens  iire  beloie  me,  showinj;  little  varintion,  Imt  a  con- 
siimt  sexual  diireionee  in  color.  Tiie  males  have,  in  all  eases  hefoie  me, 
llie  described  markin<;s,  tliou<-ii  not  e<iually  evident,  while  in  all  the 
females  the  subterminal  line  is  the  only  distinct  feature,  thon;ih  the 
icniform  is  nsinilly  very  well  nuuked. 

In  the  nnile  thc^  jtalpi  arc  a  little  shorter  than  they  are  in  the  fenmle, 
;ind  are  somewhat  oblicine,  and  in  this  st^x  the  wniys  are  also  a  little 
narrower. 

It  is  quite  certain  that  this  species  has  been  confused  in  collections, 
the  males  with  A',  snlusalis  and  the  females  either  with  that  species  or 
with  /i'.  .soh)-iali.s,  which  they  resend)h;  in  winj'-  form. 

In  size  the  species  is  nnich  below  the  averaj^e  of  A*.  .sa///,s7///.s,  and 
e(|ual8  R.  Noln-iaUs,  thou^xh  I  have  seen  some  extremely  small  specimens 
of  7iJ.  saliis((lis  (1*0  mm.). 

The  species  seems  not  uncommon  in  its  ranj'(\ 

Reuia  sobrialis,  Walker. 

1859.  Walker,  Cat.  IJrit.  Mns.,  Hotcvoceni,  XVI,  228,  Ihipaia. 
1HJ»3.  Smith.  Hull.  IJ.  S.  Nat.  Mns.,  41,  3S7,  l!eiii<i. 

reMrUtnliH,  Groto. 
1872,  Grote,  Trans.  Am.  EntomoIo<,M(al  S<m!.,  IV, 2()  and  .'{()«,  pi.  i,  (ij>.  Id,  lUuia. 
lHi»S.  Smith,  Mnll.  U.  S.  Nat.  Mns.,  11.  387.  pr.  svn. 

(Iround  (iolor  smoky  brown  to  blackish,  powdery.  Head  and  thorax 
concoloi'ous.  Prinmries  with  the  maenlation  obscure.  Transverse 
anterior  line  irregularly  outcurved.  Transverse  posterior  line  barely 
lrac«'able,  punctiform,  as  a  whole  nearly  paiallel  with  the  outer  marj>in. 
Subterminal  lin(^  pule,  si i«»iitly  irregular,  usually  interrupted,  sometimes 
pnm'tiform,  occasionally  almost  obsolete,  marked  by  a  precedinj;-  dusky 
shade,  which  becomes  broken  into  spots  when  the  line  is  punctiform, 
sonu'tinu's  ai)pearinji'  as  a  series  of  dark,  white  centered  blotclu'S. 
.Median  line  traceabhi  below  the  median  vein  in  some  si)ecimeiis.  A 
scries  of  black  terminal  dots  or  marks.  Orbicular  a  small  yellow  dot 
which  is  sometinu'is  wanting.  Kenifoiiu  upri<;ht,  narrow,  yellow,  with 
more  or  less  obvious  black  points  at  the  extremities.  Secondaries 
scarcely  paler  than  i)rinuiries,  with  a  dusky  extra  nu'dian  and  a  pale 
subterminal  line;  both  barely  traceable,  IJeneath  smoky,  coarsely 
powdered,  with  a  dark  extra  inedian  and  pah^  subterminal  line,  the 
latter  rarely  distinct. 

Kxpan.se  of  win<is,  L';{  to  -<!  mm.  =0.JI2  to  1.04  inches. 

IIAIJITAT. — Nova  Scotia  to  N'iryinia,  Ceidral  States;  J)istrict  of 
'oUunbia  in  Au<;ust;  Colorado  in  September. 

Mr,  (irote  gives  the  expanse  as  li7  to  -58  nun.,  which  is  jireater  '■ban 
any  I  have  seen,  and  great«'r  than  his  type  .specimen  in  the  collection 
'>f  the  American  lOntonndogical  Society.     In  the  specimens  before  me 


w 


72 


miLl-KTIN    .H,  rMTKI*    STATKR    NATIONAL    MUMKUM. 


i;r; 


l;i-: 


tluMC  is  no  variation  huvc  in  I  lie  <U'|»Mi  of  tiu'  ground  <'olor,  i\\u\  in  ii 
vtMy  slijjlit  rcliitivo  (lillcMcncr  in  tlie  (iistim'tiicMS  of  tlui  niiicnliition. 

TlicuMH  tiio  usual  .st'xnal  (lillVrcncc  in  Mm":  palpi,  llioso  of  tlio  male 
hcinj;'  ohliqui'  vvliilo  tliose  of  tlio  fiMualo  are  straij-lit. 

I  liiivt'  associatt'd  witli  this  sptu-ics  two  sprcinions  from  (Jlonwood 
Hprinj-s,  Colo.,  wliii'I"  i'>i>,v  |>i'<>v<^  dill'cicnt  wiicn  larj^cr  nuUcrial  is  iii 
hand.  They  are  much  more  powdery  and  seem  sli;ilder,  yet  with  prac 
tujally  the  same,  niarkiii«s  as  in  the  eastern  specimens. 

Renia  larvalia,  (iroto. 

1S72.  (Initf,  TrfinH.  Am.  I'.ntiniioloKicsil  Soc,  IV,  2(i,  liitiin. 
lH7:t.  (initr,  iniiis.  Am.  lliilomoloKiciil  Soc,  IV,  .*{;':$.  h'rnin. 

This  in  all  essentials  like  li.  sohrittlis,  save  that  it  is  paler,  mcnc 
lul(Miiis,  and  the  nniculation  rather  more  distinct. 

I'iXpanse  of  winys,  lis  to  .'>(>  mm.     l.lL'  to  1.20  indues. 

i'iXeept  the  somewhat  j^reater  si/c  an«l  sonu'what  paler  color  I  cun 
not  tind  any  dillercnces.  Mr.  (Irote  njakes  the  si/e."»U  to  M  mm.,  whicli 
is  larjicr  than  any  I  have  seen,  in<'lnding  tln^  type,  I  think  there  must 
be  an  crroi'  in  -Mr.  (Irote's  measurements  of  these  sp«'ci«'s.  !  ha\'e  hatl 
no  dillieulty  in  keepinji'  these  two  forms  apart  in  collections,  but 
can  not  tind  a  sin;;le  feature  ex<'(4)t  si/,c  and  f^rounjl  color  to  se])aratc 
them.  The  characters  pointed  out  by  Mr.  (Irote  are  not  constant. 
The  ranjue  of  the  ])resent  species  seems  to  be  j^reater,  extendin};  to 
Florida  and  Texas,  but  tlieri^  is  really  no  certainty  as  to  whiiih  of  the 
two  sjn'cics  the  records  refer  to.  Specimens  from  J)elaware  an<l 
Washin}>ton,  I).  ('.,  in  May,  an<l  Florida  in  March  are  correct,  and  raise 
the  question  whether  there  nuiy  not  be  a  seasonal  relation  between  the 
specimens  taken  at  \Vashin;.;ton  in  May  (Ii.  hirralis)  and  those  taken 
in  Aufjust  {R.  sohriolix).  My  iwaterial  is  not  suflicient  to  settle  the  unit 
ter  linally,  and  the  species  are  therefore  retained  as  distinct. 

Renia  clitosalis,  Wiilkcr. 

1859.  Walker,  Cat.  Hrit.  Miia.,  Iletorof  m,  XVI,  lOS,  Hrrminin. 
IHitS.  Smith,  15ull.  II.  S,  Nat.  Mius.,  44,.388, /.Vn/ri. 

i;ciifrali»,  (iioto. 
1872.  (irote,  Trans.  Am,  Kiitomolojjjical  Soo..  IV,  27  and  HOI),  L'enia. 
18i«.  Smith,  Hull.  U.  S.  Nat.  Mus.,  44, 388,  pr.  s.vn. 

Very  dark  smoky  brown  or  blackish,  somewhat  jjlossy.  Head  and 
cliorax  concolorous.  rrimaries  with  the  markinius  faintly  traceable  at 
best,  sometimes  almost  obsolete,  no  feature  prominent.  Transverse 
anterior  line  a  little  irregular,  obliipie.  Transverse  posterior  line 
irre^iularly  denticulate,  with  an  even  outcurve  or  a  little  drawn  in  on 
the  submedian  interspace;  followed  by  a  vajiue  paler  shade,  usuallv 
niatked  as  a  yellowish  dot  on  the  costa,  and  sometimes  confined  to  this. 
Subterminal  line  punctihtrm,  consisting  of  small  wdiitedots  which  bend 
ouiiwardly  l)elow  the  nuddle.      Sometimes  a  more    or  less  undefined 


I 


1 


A    UKViaiON    OF    TIIK    DKLTOID    MOTHS — SMITH. 


78 


(liirker  hIukIc  cmpliiisi/t's  tlu'sc  dofs.  A  sciioH  «»f  hliu-Uisli  ti'iiniiuil 
liiimh's,  Orbiniliir  ii  sinull  yiiUow  dot,  wliicli  is  often  wiiiitiii};.  I{(5iii 
form  uini{,'lit,  narrow,  yelhnv,  with  u  small  Mack  dotatesidi  extremity. 
Sei'ondaiioH  a  little  paler,  with  a  median  darker,  an  extramediaii  pale, 
and  an  interrupted  blackish  tt^rminal  line.  The  snhteiininal  line  itt 
(piite  usually  lost,  sometinn's  marked  by  a  darker  shading?,  which  per- 
sists when  tlu'  line  which  it  was  meant  to  deline  has  disappeared, 
r.eneath  paler,  the  He(!ondari«'S  mcne  yrayish  and  coarsely  powdered. 
All  winjjs  with  a  diseaJ  spot,  a  rather  broad,  extra  median  <lark  shad*' 
line,  and  a  slender,  whitish,  snbtcrminal  line,  which  is  sometinn's  a 
little  dilViise  on  t)ie  secondaiies. 

Expanse  of  winj-s  L'.'J  to  L'.">  mm.  =  ().!»2  to  1  inch. 

IIAIMTAT.— NovaScotia  to  West  Vir};inia;  Central  Htates;  New  York 
and  VVashin<'ton,  D.  C,  in  Anjiust. 

This  is  a   fairly  well   nmrked  species,  vary  in;;  in  depth  of  yronnd 

color  and  in  the  relative  indistinctness  of  the  macMilation.     The  l)ody 

structure  is  com|)aratively   moic.  robust,  and  the   win};  form    is  less 

extended  apically  than  in  the  last  pr(M!edinf;  spei-ies.     I  can  not  find  in 

my  specimens  the  sexual  ditlerence  in  the  palpi  described  by  .Mr.  (Irote, 

and  think  it  probable  that  he  luul  associated  ])()or  specimens  of  <litler- 

ent  species  as  two  sexes,  an  association  which  led  to  my  su}i},'esti()n' 

that  this  was  a  small  form  of  A'.  n'xfrivt((lis.    (iood  specimens  of  both 

sexes  make  it  certain  that  \\v  have  a  j^ood  sjjecies  in  which  the  i)alpi 

are  alike  in  male  and  female,  and  are  also  more  (dosely  scaled  than  in 

the  other  species;  approaching  Tctamdita  very  decidedly.     The  species 

does  uot  seem  to  be  common. 

Renia  factiosalis,  Walkor, 

isr)fl.  Wiillccr,  Cat.  Ikit.  M;i.s.  JI('t»M(H'(Ma,  XVI,  37,  TTupvna. 
lS!t;{.  Smith,  iJiill.  H.  S.  Xiit.  Miis.,  U,  :!HS,  neiiiu. 

plcnilinrdlig,  (il'oto. 
IS7:.'.  Groto,  Trans.  Am.  Entomolofjfical  Soc,  IV,  !)!),  licnia. 
1898.  Smith,  Rnll.  IT.  S.  Nat.  Mas.,  4t,  ;WH,  \n\  syn. 

uliitaHH,  (iroti\ 
1H72.  (Jrote,  Trans.  Am.  Entomological  Soc.  IV,  99.  Hviiia. 
1873.  Groto,  Trans.  Am.  Eutomrtlogical  Soc,  IV,  309,  Unun. 

Oiound  color  varying  irom  luteous  to  leather  brown,  more  or  less 
]>owdery,  sometimes  appearing;'  smoky.  Head  and  thorax  concolorous. 
I'limaries  with  the  macnlation  variably  distinct,  .sometimes  obscured, 
more  usually  evident,  sometimes  contrasting'.  There  is  a  decided  ten- 
dency to  discoloration,  as  in  Ii.  discoloral is,  hut  less  strongly  marked. 
As  a  rule  the  dusky  shade  ]»reccdiiig  the  snbterminal  line  is  the  most 
marked  character.  Uasal  line(nident  in  thecostal  si)acc.  Transverse 
aiitciior  line  distinct,  sometimes  prominent,  even  or  slightly  sinuate, 
Hltright  or  only  a  little  bent  or  obli(pie.  Transver.se  posterior  line 
irregular,  even  over  the  costal  region,  irregularly  crenulate,  sometinies 
punctiform  below  this  point;  as  a  whole  nearly  i)arallel  with  the  outer 
margin.     Subterminal  line  only  a  little  ])aler  than  the  ground  color; 

'  Bnll.  U.  S.  Nat.  Mus.,  44,  388. 


74 


iUTLLETIN   48,  UNITK;)    STATES   NATIONAL   MUSEUM. 


lint  iisiiiilly  (U'liiie'l  by  it  distinct  diiik  ])r<'('edin«'  shiulo  wliicli  some 
times  Itecomes  dill.is<s  involviiij^'  tlu'  terminal  sj)ii<'(i  in  wliole  or  in 
])art.  and  occasionally  reduces  the  line    >  a  series  of  pale  dotlets,  all 
intermediate  lorms  ocenrrinii.     A  series  of  blackish  terminal  lunules, 
sometimes  reduced  t;.  mere  points.    Median  shade  broad,  diffuse,  nj)ri,<>lit, 
vaiyinj;'  from  this  to  cntii  e  absence.    ()rbi(;nlar  small,  rounded,  varying 
from  vi'liow  to  coi!c(»loi'ous,  to  1/iaek.     IJeniform  upright,  narrow,  paler 
or  cont  dorous,  deiiiuMl  by  black  scales,  iiamaculate,  with  black  points 
whicii  nniy  b(^  connected  and  Ibrm  a  lunule,  or  the  entire  s])ot  may  be 
black  an<l  coutrastinj;',  in  such  cases  soniewhat  undefined.     Seconda 
ries  smoky,  varvino-  to  fuscous  or  i)urply,  with  a  dark  median  line  fbl 
lowed  by  a  i>aler  shade,  and  a  i»ale  sid)terminal  line  preceded  by  a 
(bisky  shade;    in  each  instance  varyin<i'  to  ()l)solescence.      Ueneath. 
vai|>.nf;from  amy  to  snu)ky  or  brown,  i)owdery,  with  aviiriably  marked 
median  dark  and  subterminal  ]>ale  line. 

lOxpanse  of  wings,  I'J  to  I'S  mm.  =  ().()L*  to  1.12  inches. 

Habitat. — Canada  to  Virginia,  to  (Jolorado.  Canada  iind  Washing 
ton.  1).  (',.  in  August;  Colorado,  August,  S«'ptember. 

Of  thesj  'cimens  before  me  no  two  are  alike,  and  1  know  the  range  of 
variation  is  greater  than  even  my  material  indicates.     In  the  line  of 
discoloration  the  tendency  seems  to  be  toward  a  ])ale  basal  and  sub 
terminal  space;  but  it  may  be  reversed  in  a  larger  series.     The  most 
eonspiciior.a  change  occurs  in  the  oidinary  spots  from  yellow  to  black, 
and   1  am  not  at  all  surjjiised  that  Mr.  (irote  made  two  sjjccies  from 
limited  material.     1  have  not  seen  his  type,  but  have  seen  the  speci 
mens  named  R.  (luiolis  m  his  collectioji,  which  do  not  agree  closely 
with  his  description.     Fiom  the  descrii)tion,  which  is  (piite  <'hara('ter 
istic,  I  havi-  named  specimens  fully  agreeing  with  it,  and  certainlv 
vel'erable  to  R.  pJcnUlnrolis,  of  which  I  have  seen  tlie  type. 

The  sex'ial  difference  between  tin  palj)!  is  nmrked  in  this  species: 
those  of  the  male  being  obli(|ue  and  somewhat  shorter,  while  those  ui 
the  female  are  longer  and  straight. 

Renia  flavipuiictalis,  (»cy<'r. 

18:-!2.  (Jcycr,  Ziitra<!f;o,  IV,  IT),  (i»s.  701.  702,  Antihhmma. 

isr>i».  Wiill.;>r.  Cat.  ISrit.  Mus.,  Hcterorcm,  XI\,  H.-)i»,  i  Uermitiht. 

ISSI.  (Jroic.  (jiniidian  I'.ntoiiKilojiiHt,  XII!.  !tl,  lltnin. 

plidh nifi(ii;x,  Walker. 
1859.  Walkcfr.  ("at.  IJrit.  Mim.,  Heterocera,  X\  1,  107.  /hrmiiiw. 
18!«.  Smith,  Hull.  U.  S.  Nat.  Mns.,  14,  :{8S,  j»r.  syn. 

litHHnniis,  Walker 
18;")!).  Walker,  (at.  Hi  i-^.,  Heteroeora,  X\l,  108,  Ihrminw. 

18}«.  Sniith,  Hull.  V.  S.  .      .  Mils.,  14,  :W8,  jir.  syn. 

lniHldidlin,  (irote. 
187:'.  (iiote.  Trans.  Am.  Kiitomolouieal  Soc.,  IV,  27,  It'cnio. 
187:1.  (iioti!,  TraiiH.  Am.  KntomoloKieal  Soc,  I\  ,  im,  =  heljnujei. 

'.■'ilfrdtjcl,  (irote. 
1872.  (irote.  Trans.   \in.  i;ntomoloi;ical  .^oc,  IV,  27,  lUiiia. 
187:1.  (irolo,  Tr;ms.  Am.  Ilnlomoiouieal  Soc.,  IV,  :{()l.  I'j.  I,  (ijr.  <).-,,  Ihnia. 
18s;j.  (irote,  Canadian  l.iitomolo<rist,  XIII,  !ll,  ])r.  syn. 


th 

ve 
se 


III 
ir( 
at 


l.'i 
IIUl 

I'r 


A    REVISION   OF   THE   DELTOID    MOTHS — SMITH. 


7% 


Gromid  color  a  iH»\v<l<«ry  Internes  jrr.'iy,  Viiryin;;-  soiiicwhar  in  sh;ulo. 
Ik'iid  ami  thorax  of  tlu'  lij»lif  .m<)uii<l,  witlioiit  i>()\v<l('iiiigs.  Piiiiiari«'s 
with  the  inaikiii}>s  <ljstiiict  in  iill  the  specimens  seen,  and  as  a  rnle 
with  some  contrasts  in  color,  the  snbterniinal  space  l)ein<>-  i)artie,nlarly 
liable  to  be  <larker  in  color  thiin  the  rest  of  the  wiii^-.  Uasal  hne 
Wiititins:  in  the  specimens  examined.  Transverse  anterior  line  nprij^ht 
or  nearly  so,  even,  brown,  usnally  i)receded  by  a  pale  shade,  (piite  often 
outwardly  diflnse.  Transverse  posterioi  line  narrow,  brown,  followed 
by  a  broader  yellow  or  whitish  line,  both  even,  usnally  nearly  upright 
or  a  little  outcurve<l;  but  sojnetinu's  broadly  outcurved  <»ver  the  cell 
and  correspondinj'ly  drawn  in  below.  Subterminal  line  pale,  irregfular, 
rarely  continuous,  sometinu's  [)inu'tiform  aiul  often  obscured  in  the 
I(»wer  part  of  its  course,  precede!  and  delined  by  a  dusky  shade  which 
is  also  sometimes  broken  into  si)ots,  but  is  more  usually  diHuse,  dark- 
ening the  entire  subterminal  space.  A  series  of  nu)re  or  less  distinct 
terminal  black  dots  or  lunules.  A  broad,  dirlVise,  upright  nu'diau 
shade  is  i)resent  in  souu',  specimens  and  varies  to  total  obsolescence. 
Orbicular  small,  round,  yellow,  often  absent,  rarely  black.  Iveniform 
upright,  narrow,  somewhat  constricted,  yellow,  with  black  ixtints,  a 
black  lunule,  or  entirely  invaded  by  black.  Secondaries  i)aler,  dirfy 
gray  with  an  eveu  central  pale  line  preceded  by  a  dusky  shade,  aiul 
an  irregular,  i)ale  subternnnal  line  wdiich  is  otten  obsolet«'.  Jieneath, 
coarsely  powdered,  with  a  vague  discial  lunule  on  secondaries,  ami  on 
all  wingi?'  a  brown  extra  median  line  and  often  an  exterior  i)ale  line. 
The  latter  is,  however,  (piite  freipu'utly  lost  altogetiier  and  yet  more 
often  lost  on  the  priuuiries  alone. 

Expanse  of  wings,  20  to  30  mm.  =  O.SO  to  l.i'O  inches. 

Habitat.— ('anada  to  Alabama,  to  Texas,  New  Mexi<M»;  New  York 
and  Xew  Jersey,  .July  and  August;  District  of  ('(dinnbia.  Indmna  and 
Illinois  in  July;  Texas  in  May  and  dune. 

This  is  our  most  common  and  widely  distril)uted  S])ecies,  and  it  is  at 
the  sam(^  time  the  most  easily  recognizable.  The  clear,  «'ven  trans- 
verse posterior  line  is  unicjue  in  the  genus,  and  this  is  continued  to  the 
secondaries,  giving  some  specinuMis  a  veiy  distinct  geometriform 
apixarance.  The  line  of  variation  has  been  somewhat  indicated  in 
the  des(iii)tioii,and  while  it  is  consideralde  it  is  not  confusing,  because 
(he  chara«'teristic  nudian  lines  dominate  everything.  The  <lifle»'ence 
in  sex  is  strongly  marked  in  the  palpal  structure.  In  the  male  they 
ire  quite  decidedly  recurved,  wliil.-  ni  the  female  they  are  straight  or 
at  most  oblicpie. 

Rb-nia  pulverosalis,  in'w  s|icci('«. 

(Iround  color  varying  from  dirty  luteous  to  smoky,  pov.deretl  with 
li.'ack  scales.  Head  and  thorax  «'<tncolorous.  rrnnaries  with  all  M"> 
inaculatitm  obs<'ure,  ditlicult  to  make  out,  with  no  pnuninent  leat.M'. 
Transverse  anterioi    line  dusky,  even.  ;i  liltle  uutcurved.     Transverse 


•^.■^.-^^vT :"'  ^^^■ 


ll-4 


H 


7(1  lUILLETIN    18,  UNITED    STATES   NATIONAL    MUSEUM. 

posterior  line  narrow,  dusky,  iu'coinpiiiiicd  outwardly  by  a  paler, 
broader,  (Mjually  even  i)ale  Iiii«',  the  lines  varying;'  in  .ueneral  course 
Irom  an  even  ontmrve  to  an  even,  not  strongly  marked,  bisiniiation. 
Subterniinal  line  vaj-ue,  paler,  often  punetiforni,  an(i  frequently  in  jireat 
part  lost;  preceded  by  a  vajiiu'  darker  shade,  which  is  often  broken 
into  blotches.  A  series  of  obscure  terminal  daik  marks.  There  is  an 
obscure,  indefinite  uprij^ht  median  shade,  Avhich  is  outwardly  diffuse 
and  slij^htly  darkens  the.outer  [)ortion  of  the  median  si)aee.  Orbutular 
small,  round,  yellow,  often  wantin;.;',  l{<"nifor]n  nairow,  upriffht,  yel- 
lowish, with  or  \  hout  black  dots  at  the  extremities,  >^)nietimes 
entirel.\  black.  Secondaru^s  i>ray  to  smoky,  immaculate  or  with  faint 
traces  of  median  ami  subtermiiml  lines.  Ueueath  somewhat  i)alei', 
coarsely  powdered,  with  traces  of  a  dis<'al  lunule,  and  the  two  usual 
transverse  lines. 

Kxpansc  of  winys,  lit;  t()  .'i-  mm.=  1.05  to  l.;>()  inches. 

liAur.  \T.— (ih'uvrood  Sprinjis,  Colo.,  Au.yust  and  September. 

8ix  specimens,  eciually  divided  as  to  sex,  arc  before  me,  all  from  Dr. 
William  Barues. 

The  species  has  on  clos*' study  all  tlu^  maikinjis  found  in  li.  Jinri- 
puuctalis,  so  far  as  the  primaries  are  concerned,  and  of  this  species  1 
was  at  first  inclined  to  consider  it  an  extrenu'.  variety,  ('loser  study 
shows  that  it  is  altoyetlu'r  a  sli<>hter  form,  with  the  outline  of  h. 
.sr>/>/'m7/.s rather  than  U.JIavipuiictdlis,  and  the  wings  as  much  drawn 
out  and  pointed.  Tlu^  wiujjs  are  uniforndy  jjowdered,  and  the  trans 
verse  posterior  line  is  almost  obsolete.  On  the  secondaries  the  median 
])ale  line  is  entirely  lost,  and  in  fact  the  winf4S  are  sonu^timei  entirely 
immaculate,  h'iiially,  the  palpi  are  nnu-h  longer,  and  in  the  male  arc 
not  at  all  recurved,  but  rigidly  obli(|ue.  Its  r«Oatious  are  thus  in 
reality  with  Ii.  sohrudis  and  />'.  larralis  rather  than  with  R.Jfanpunc 
talisj  to  which  tlu'  character  of  the  maculation  refers  it. 


Genus  HYPENULA,    (Jioto. 

1876.  Groto,  ('anadian  Eutoinoloiiist,  \III,  27. 
The  eyes  are  nakt'd,  large,  globose.  Front  with  a  ])ointed,  scaly 
tuft.  Tongue  strong,  moderate  in  length.  Palpi  long,  flattened, 
upcurved  and  curving  backward,  nuu-h  exceeding  the  vertex;  second 
joint  much  the  longest.  The  scaly  (dothing  is  somewhat  loose  and 
directed  upward  and  backward;  on  the  terminal  Joint  it  is  truncated  or 
cut  otl'  at  tip,  uiaking  the  J(*int  in  outline  somewhat  hatchet-shaped. 
In  fhe  male  the  ])alpi  are  a  very  little  longer  tlmn  in  the  female 
Antenna'  situated  on  the  vertex,  moderate  in  length,  in  the  femah 
with  single  small  ^ateral  ciliations.  In  the  male  the  joints  have  moder 
ately  long  curved  and  slender  lateral  bristles,  and  on  the  underside  oi 
the  sliaft  are  little  tubercules  arranged  in  two  rows,  giving  rise  to  small 
tultsof  hail.     Ocelli  present,  close  to  the  compound  eye  and  lu'ar  tc 


i: 


A   REVISION    Ol'    THE    DELTOID    MOTHS — SMITH. 


77 


the  base  of  tlici  Jill t«MiMa'.  Body  nKKlciiitc,  scarcHy  robust:  abrtornen 
cyliudrii'.,  in  the  fciiialo  pointed,  conical,  in  both  sexes  reachinji'  to  or  a 
httUi  exeeedinjif  tlie  hind  an<;ie  of  the  secondaiies.  Lens  stout,  lonj;-, 
well  clothed  witli  scales,  middle  and  hind  tibia'  with  tlie  usual  spurs, 
ill  the  inah^  the  tore  tibiae  arc  somewhat  modihed.  The  member  is 
short,  witli  a  distinct  epiphysis  and  a  lonj;-  process  eciualinji'  the  basal 
Joint  of  the  tarsi,  tipped  with  an  acute,  curved,  corneous  sj)ine,  and 
covering  a  groove  in  the  first  tarsal  Joint  in  which  lies  a  itencil  of  line, 
hair-like  scales.  The  entire  leg  structure  is  nuich  heavier  than  is 
usual  in  this  series,  and  the  vestiture  is  coarse  and  loos<'.  Wings 
large,  broad,  not  frail;  primaries  trigonate,  the  costa  a  little  depressed 
centrally,  a[tex  rectangular,  outer  margin  curved  and  only  moderately 
obli(pie,  making  the  inner  margin  oidy  a  little  shorter  than  the  costa. 

This  is  a  quite  strongly  marked  genus  with  a  distinct  resemblance  to 
Iio)noloi'li((  in  its  appi^arance  and  habitus,  yet  with  the  structural  fea- 
tures which  ally  it  to  Henninia.  The  long,  upcurved  paljd,  terminating 
in  a  tlat,  hatchet-shaped  tip,  aic  (piite  characteristic.  The  venation  is 
normal,  the  accessory  cell  of  the  prinniries  being  i»resent. 

There  is  only  a  single  species  thus  far  known,  and  this  is  of  an  ol»scure 
smoby-brown  on  which  all  the  usual  markings  are  faintly  visible. 

HypFiiula  cacnminalis,  Walkor. 

1855K  Walker,  (at.  Hiit.  Mas.,  llfteroceni,  XM,  :t7,  lliipnia. 
181)1.  Siiiitli,  List  Lc])id()i)tcin,  61^,  Hnpeniihi. 

hifvidlin,  Walker. 
1859.   Walkor,  Cat.  Brit.  Miis.,  Heterocera,  XVI,  1'37,  Ucrwiiiiii. 
\Sm.  Siiiitli,  ISiill.  IT.  S.  Nat.  Mum.,  11,  :W!t,  pr.  syii. 

oimcalin,  (Jiote. 
187(i.  (irote,  Canadian  KiitoiiKtlottist,  \III,  L.'7,  IhjiHUulu. 
1891.  Sinitli,  List  Lopidoptcia,  <i:!,  pr   hvh. 

Ground    c(dor    a    didl,  smoky  brown,  varying  in  shade,  sometimes 
toward  blackish, sometimes  toward  a  richer  more  reddish  tint,  often 'vith 
s]»rinkling8  of  whitish    scales.     ICntire    body  concolorous.     !*riiaaries 
with  all  the  usual  markings  traceable  and  often  (piite  «listin(;t  though 
lu'ver  contrasting.     Basal  line  evi<lent,  brown,  single  toothed.     Trans- 
verse anterior  line  single,  brown,  denti(Mdate,  rather  evenly  ou'.nrved 
over  the  cell  and  somewhat  irregularly  di  aw  n  in  below.     Sometimes  an 
indefinite-  yellowish  shade  follows  the  Drown  line,  and  sometimes  it  is 
euiphasiy.ed  by  scat  lering  white  scales.     SiWtci  niinal  line  iiregulaiiy 
<lentate  and  angidale.  paiei'  than  gionnd  color,  usually  marke<l  by  white 
xides  and  oiten  pieceded  by  a  darker  brown  shading.     A  .series  of  black 
lerminal  lunules,  soinetinieH  iinilcd  into  a  continuous  line,  and  often 
1  educed  to  small  dots.    7h«'ie  is  lra<'eable  a  very  viigiie,  dilfus(>  median 
-hade.     Orbicular  small,  round,  yellow  or  white,  often  wanting.     Kini- 
lorm  small,  narrow,  upright,  yellowish,  maik.d  b.\  a  white  dot  inferiorly 
;iiid  sometinu'S  siipeiiody  as  well,     HecoiidaiicM  vurh  a  somewhat  more 
vcllowish  cast,  varying  in  deplli,  s\\[\\  a  discal  lunule,  a  broiid  ni<(liaii 


f 


78 


lUTLLETIN   48,  UNITED    STATES    NATIONAL    MUSEUM. 


(lark  line  and  a  paler  snbtorminal  line  vaguely  visible  in  most  specimens; 
obsolete  in  some,  and  (piite  distinct  in  others.  The  markinj^s  are  most 
evident  in  the  paler  specimens,  and  disappear  entirely  in  the  dark  forms. 
r>eneath  more  grayish,  with  coarse  brown  powderin<;s.  Primaries  with 
an  e:;terior  dark  line  and  a  partial  subterniinal  line  which  is  best  marked 
on  thecosta;  secondaries  with  the  niaculation  of  the  upper  side  more 
distincitly  repeated. 

Expanse  of  winus,  21>  to  .55  mm.      I.I.")  to  1.40  inches. 

Habitat.— iSoiithern  States;  Florida  in  April;  Texas  in  May  and 

Aujjust. 

The  species  is  a  marked  one,  and  offers  little  variation  except  in  depth 
of  ground  color.  It  seems  to  be  not  uncommon  in  its  range,  specimens 
occurring  iu  almost  all  collections. 

Genus  HETEROGRAMMA,   Guein^o. 

1854.  Giiende,  Species  General,  Deltoiik-s,  1)1. 

1859.  W'lker,  Cat.  Urit.  Mu.s..  Lep.  lictoiocera.  XVI,  147. 

VhuUvuofthanii,  Groto. 
187:5.  (irote.  Trans.  Am.  Entoniolo<;ical  Soc.  IV,  IW. 
1881.  Sniitli,  Hiiii.  IJkln.  Eutonioloj^ical  Soc,  VII,  (>. 

Head  rather  small  and  not  prominent;  eyes  naked,  large,  not  at  all 
lu'otuberiiiit.  Ocelli  distinct,  situated  close  to  tiie  compound  eye  and 
sonunvhat  rem()\-cd  from  the  base  of  the  antenna',  without  an  evident 
point<'d  IVoiital  tutt.  I'alpi  long,  compre?  sed,  obliipie,  and  (dothed  with 
upright  scales  in  the  female,  recurved  an(»  with  the  scales  directed  for 
ward  in  the  male,  the  clothing  not  excessively  long  in  either  case. 
Tongue  moderate  HI  length  and  strength.  Antenna'  situated  on  the 
vertex,  well  forwiird,  al>oiit  two-thirds  the  length  of  the  forewing; 
simple  in  the  female,  witli  lateral  bristles  iu  the  male,  the  Joints  fur 
nished  inferioily  with  tubercles  from  which  arise  tufts  of  long  hair. 
Body  moderate  or  slight,  abdomen  cylindrical,  reaching  to  or  a  litth 
exceeding  the  anal  angle  of  secondaries.  Legs  moderate  in  length, 
(piite  stout;  tibia'  with  the  usual  spurs. 

in  the  male  the  anterior  tibia  is  very  much  abJjreviated,  anteriorly 
prolonged  into  a  process  which  is  (jiiite  ])rominent  and  densely  scaled, 
covering  also  a  nuiss  of  si)ecialized  scales.  The  basal  joint  of  the  tar 
sus  is  very  loug,  exceeding  the  tip  of  the  tibial  process,  and  near  it> 
tip,  extending  ui)ward,  is  a  peculiar  ladle  shai)ed  appendage,  the  handh^ 
(piite  shMuler  and  tlattened,  the  bowl  hemisidierical  nearly  and  fringe  1 
at  the  edges:  externally  it  is  covered  with  pajtillate  jtrocesses,  whil' 
inwardly  it  is  clothed  with  hmg  liair.  This  sanui  structure  is  als  i 
present  in  I'althis,  but  seems  to  be  absent  in  all  other  genera.  Tii  ■ 
wings  are  broad,  rather  frail  in  ap])earance,  trigonate,  moderately  ioiii, 
primaries  with  the  eosta  arched,  the  apex  sharply  rectangular,  nndd' • 
of  (uite.-  tiiaigin  distinctly  though  not  jtrominently  angulated,  a  vei \ 
little  exci'vated  from  that  jwint  to  tluicosta  and  toward  the  hind  ang'f 
(piiie  obli(pR^.     iSecoiidaries  rounded,  a  very  little  retracted  opposi;' 


^^ 


A    REVISION    OF   THE    DELTOID   MOTHS — SMITH. 


79 


W 


the  cell.  The  voiuition  of  the  priinaiies  is  aberrant,  in  that  the  acces- 
sory cell  is  wantiii^r,  and  veins  7  to  JO  arise  from  the  same  stalk,  with  G 
from  the  end  of  the  subcostal. 

I  refer  the  8i)ecie8  described  by  IMr.  (Jrote  as  rhaJcvnophmia  to 
(luenee's  ^enns,  with  whi(;h  it  agrees  so  far  as  the  description  goes. 
The  genus  is  well  marked  and  readily  distinguished  by  the  characters 
above  given. 

A  single  species  oidy  is  lelerable  here,  my  11.  palliijera  proving  not 
congeneric  on  careful  study  of  more  material. 

Heterogramma  pyiamusalis,  Walker. 

1859.  Walker,  Cat.  Brit.  ^Iii.s.,  lleteroocrii,  XVI,  lOti,  Ilevminia. 
18!)3.  Siiiitli,  Hull.  14.  U.  S.  Nat.  Miis.,  IK").  Ilcln(,{j)-<iinma. 

(jj/asalin,  Walker. 
1859.  Walker,  Cat.  Brit.  Miis.,  Ileterocera,  .\I.\,  «.">(;,  Ihrmiuin. 
1893.  Smith.  Bull.  14,  U.  S.  Nat.  .Mils.,  :iS5,  j.r.  syn. 

rurUjenu,  (irote. 
1873.  Grote,  Trans.  Am.  Eiitoiin>l()<.;ieiil  Sue,  IV,  305,  I'huUiuitjihana. 
1S84.  Smith,  Bull.  Bkln.  Entoiiioloirical  Soc,  VII,  (i,  Urleroiiramma. 
1893.  Smith,  Bull.  14,  T.  S.  Nat.  Mus..  38.5,  pr.  syu. 

(Irround  cidor  varying  from  pale  testaceous  to  dark  luteous,  or  even 
smoky  gray,  in  fn^sh  s])ecinu'ns  with  a  moie  <u-  less  marked  greenish 
or  olivaceous  sutt'usion,  whicli  <'hanges  to  a  ]>eculiar  sonlid  yellowish 
or  tan  in  old  examples.  Head  and  thorax  concolorous,  abdomen  a 
little  paler,  with  the  edges  of  the  segments  ringed  with  whitish. 
Primaries  with  the  maculation  well  d<'line<l.  Transverse  anterior  line 
distinct,  upright,  pale,  outwardly  margined  by  a  darker  olivaceous 
gray  shading,  \'hich  is  outwardly  <lin'use,  extending  well  into  the 
median  space.  Transverse  posterior  line  narrow,  nearly  e\en,  consist- 
ing of  an  olivaceous  followed  by  a  pale  line,  as  a  whole  nearly  upright, 
its  course  rather  irregularly  and  \e\y  slightly  sinuate.  A  somewhat 
broader  mediiin  shade  (;rosses  the  space  beyond  the  middle  and  parallel 
to  the  transverse  posterior  line.  Snbterminal  line  a  little  paler  than 
the  ground  color,  twice  rather  markedly  bent  outward,  and  with 
three  intervening  im-urves,  emiihasized  Iiy  crossing  a  daiker  shade 
which  begins  in  the  middle  of  the  subterminal  space,  is  there  rigidly 
defined  and  extends  into  the  terminal  space,  irregularly  merging  into 
the  ground  color  before  the  margin  is  reached.  A  series  of  black  or 
blackish  terminal  lunules,  olten  connected,  but  ometimes  leduced  to 
venular  points.  A  more  or  less  marked  dnsky  or  dark  shade  extends 
i'rom  the  apex  oblitpiely  inward  toward  the  cell.  Orbicular  small, 
lound,  concolorous,  yellow,  brown  <u'  black,  or  entirely  wanting. 
Kenifonn  narrow,  upright,  centrally  constricted,  black  centered,  some- 
times reduced  to  two  superimi)osed  black  dots.  Secondaries  paler, 
more  whitisii  towaid  tin*  base,  cros.sed  by  two  rather  even  dark  linc'S 
nntinuing  the  median  s'lade  and  (ransver.se  posteiior  line,  and  by  a 
I'ale  line  continuing  the  .subterminal  line  of  the  primaries.    Of  these 


* 


,VY'' 


^'S-l 


80 


Iin.LKTIN    48,  UNITED    STATES    NATIONAL    MUSEUM. 


the  inner  line  is  rarely  distinct,  while  the  others  are  fai  ly  well  marked 
in  most  instances,  sonietinies  beeoniinji'  obsolete  toward  'ic  costal  mar 
gin.  Beneath,  varyinj;"  greatly  in  color  and  in  the  distinctness  of 
macnlation.  I'sually  all  wings  have  a  discal  lunule,  tlumgli  this  is 
often  absent  on  the  primaries  and  not  infreqne^itly  on  the  secondaries 
also.  All  wings  also  with  an  extra  median  dark  and  snbterminal  pale 
line,  followed  by  a  series  of  brown  terminal  lunules.  Sometimes  all 
this  disappears,  but  moie  usnally  tlu'  ten<lency  is  to  obsolescence  on 
the  juimaries  only,  and  rarely,  in  dark  si)ecimens,  both  the  lines  will 
be  pale. 

Expanse  of  wings,  20  to  24  mm.=O..SO  to  0.95  inch. 

Habitat. — Canada  to  Lonisiana  and  Texas;  JMiddle,  (Central,  and 
Southern  States;  Missouri  in  August;  Canada  m  ,Iune;  New  York  in 
May;  District  of  Columbia  in  August. 

This  rather  common  species  is  (piite  readily  recogni/ed  by  the 
peculiar  color  alone.  This  is  a  mixture  of  a  pale  day  yellow  ground 
overlaid  by  a  darker,  more  olivaceous  yellow  brown,  and  of  this  the 
markings  consist.  The  prominent,  rigid  transverse  anterior  line  and 
the  ecjually  ])roinincnt  upright  rigid  shade  in  the  subtermiiial  space 
distinguish  the  species  at  a  glance,  even  though  it  varies  greatly  in 
the  depth  of  its  grouiul  to  an  almost  smoky  purjilish  gray.  Fresh 
specimens  are  (piite  handsome. 


i:l 


Genus  GABERASA,    Walker. 

1865.  Walker,  Cat.  IJrit.  Miw.,  1  [.'teroccra,  XXXIV,  lli)7. 

TortrivodcH,  (irote. 
1S72.  (irotf.  Trans.  Am.  Entomold^fical  Hoc,  IV.  10.") 

Kiilitttncria,  (iri)t('. 
1S7«.  (irote,  Bull.  U.  8.  Gim.I.  Surv.,  VII,  m\. 

Head  moderate,  not  ])romiiient,  without  distinct  frontal  tuft.  Eyes 
large,  not  .prominent,  naked.  Ocelli  distinct,  smaller  in  the  male,  dose 
to  the  compouiul  eye,  and  rather  near  the  base  of  the  anteume.  Tongue 
moderati)  in  length,  strong.  I'alpi  long,  comi)ressed,  <nirved  upward, 
and  soiiu'times  rising  nearly  upright,  but  not  recurved.  \'estiture  not 
long,  so  the  Joints  are  not  broad  as  seen  from  tlu^  side;  the  terminal 
Joint  or  its  vestiture  truncate  at  tij).  There  is  no  notable  diHereucv 
between  the  sexes.  Antenme  moderate  in  length,  scarcely  exceeding 
half  that  of  (he  luimaiics:  simple  in  the  female,  in  the  male  with  mod 
cijile  lat<'ral  bristles,  iiiid  interiorly  the  Joints  have  shorter  line  hiiii, 
arising  fiom  .small  tubercles.  The  body  is  small,  the  abdomen  .slcudci, 
cylindrical,  reaching  to  or  somewhat  exceeding  anal  angle  of  second;i 
lies,  l-egs  moderately  huig  and  stcuit,  tibia'  with*  long  uiiecjual  spurs 
as  usual,  the  anterior  pair  modified  in  the  male.  The  tibia  is  sIhmi. 
with  a  narrow,  long,  mcmbraiioiis  anterior  process,  not  etjualing  i;i 
length  the  basiil  Joint  of  the  tarsi.  uimI  without  special  modilied  scales 
tutt.s,  or  pencils  of  hair.  Wings  moderut<',  primaries  rather  ejougsi^' 
and  narrowed,  'lilfering  in  the  sexes. 


A    REVISION   OF   THE    DELTOID    MOTHS SMITH. 


81 


111  the  female  tlio  ajiex  is  marked  iind  tlu'  (mter  margin  is  distinctly 
piodiicod  01- aii^yulated  at  its  middle,  sli«-litly  excavated  between  that 
point  and  the  apex,  and  quite  oblicine  to  tiie  hind  angle,  in  the  male 
tiie  apex  is  obtuse  and  the  wing  is  deft  from  the  middle  of  the  margin 
inwardly  nearly  to  the  transverse  posterior  line,  each  corner  of  each 
lol)e  thus  formed  rounded.  In  venation  the  male  is  Just  enough  mod- 
ilied  to  accommodate  the  modification  of  the  wing,  and  tlieorigiii  of  all 
veins  is  as  in  the  female.  This  is  out  of  the  usual  course,  in  the  absence 
of  the  accessory  cell,  and  in  the  faet  that  vein  10  arises  out  of  the  sub- 
costal before  the  end.  instead  of  from  the  same  jjoint  with  7  to!>,  whicii 
are  on  one  stalk.  With  both  sexes  at  haml  the  genus  is  recognizable 
at  a  glance.  With  the  female  oiiiy  there  is  a  decided  resendjlance  to 
llctcrognonnia,  but  the  wings  are  narr()w,  cpiite  different  in  coh)r,  and 
tiie  venation  is  deidsive,  if  that  be  referred  to.  This  is  the  only  one  of 
our  genera  in  which  the  wings  are  lobed  or  cleft  in  the  male,  and  we 
have  only  a  single  species,  whicii  is  hence  recognized  with  the  genus. 
It  is  interesting  to  note  that  the  tibial  process  has  become  nuich 
reduced  here,  though  the  tibia  itself  is  very  much  abbreviated.  [ 
have  seen  a  second  allied  sjjecies  from  the  W\'st  Indies,  in  which  the 
jialpiare  more  strongly  recurved  and  which  have  a  tuft  or  fringing  of 
scales  on  the  costa.     This  is  the  typical  Tortricoden  of  Gueuee,  and  not 


congeneric!  with  our  more  northern  form. 


Gaberasa  ambigualis,  Walker. 

mi'K  Walker,  Cat.  Urit.  Miis.,  Ilcterocera,  XXXIV,  ll!»S,  Gahcram. 

j  hijidulix,  Grotc. 
1S72.  (Jrote,  Trans.  Am.  Eiitomolouical  Soc,  IV^,  10."),  Tortricodes. 
1878.  Grote,  Mull  T.  S.  (Jcol.  Siirv.,  Vl    ."itU,  Enlinlnerin. 
I8i«,  Siiiitli,  Hull.  41,  U.  S.  Nat.  Miis.,  .m"),  i)r.  syii. 

9  iiKliriealix,  (irotc. 
1871.'.  Groto,  TraiiH.  Am.  KiitoiiKiIojiical  Soc,  IV,  1()(!,  Tortricudea, 
1S7K.  (irote,  Trans.  Am.  Ijitomdlogical  Soc,  IV,  NiiS,  lletrnxjrumma. 
1878.   Lintnor,  KntomolojfiealContrihntions,  I\  ,  110,  9  hijidallx. 

(Iroiind  color  a  somewhat  pale  reddish-brown.  Head  and  thorax  <!on- 
inlorous;  abdomen  with  a  lutcons  adniixtnre,  the  edges  of  the  seg- 
ments narrowly  pale  ringed.  Primaries  with  the  markings  ri(!her, 
<lieper  brown,  the  basal  s[>ace  clearly  and  evenly  tinted,  but  all  beyond 
more  or  less  smoky.  Basal  line  evident  in  some  s])ecimens.  Trans- 
Ncr.se  anterior  line  ui)right  or  a  little  inwardly  oblicjue  from  costa  to 
linid  margin,  broad,  brown,  outwardly  diffuse,  foiniing  the  most  prom- 
inent  ornamental     feature  of   the   wing.    Transversa'   posterior    line 

li  i!(ler,  rivulous.  an<l  irregularly  denticulate  and  sinuate.  ,4  usually 
'i|^tinct,  rather  broader  UK^dian  line,  which  is  more  e\  en,  Imf  in  general 
"inrse  very  nearly  iiarallel  to  the  transverse  posterior  line.     Subtermi- 

il  line  pale,  preceded  by  a  darker  shade.  becon)ing  obsolete  toward  the 
I  liner  margin,  outwardly  angulate<l   below  the  apex  and  again  at  the 

"lidle  of  its  course.     An  obli<pu'.  somewhat  undefined  brown  apical 

;8«L'— No,  48-       «> 


■'',  -. 


1^ 


82 


IJULLlVriN    18,  UNITED    STATES    NATIONAT,    MUSEUM. 


streak.  A  series  of  blackish  terminal  dots,  soinetimea  fonniiifj  a  nearly 
continuous  line.  Orbicular  small,  brown  riuf-ed  and  white  centered 
often  wholly  wantiuH'.  Kenilbrm  narrow,  upright,  nuirked  as  a  white 
huiuh',  reduced  to  two  white  dots,  or  entirely  wanting.  So  far  as  tht 
ormimentation  is  concerned  the  sexes  are  alike,  except  that  in  the  mal<- 
the  clclt  of  the  i)rimaries  interrui)ts  the  course  of  the  subtermiiml 
line,  this  line  is  much  more  angulated  below  the  apex,  and  the  shade 
]>rece(ling  it  is  blackish  at  that  point.  A  black  spot  marks  the  lowei 
angle  of  the  upper  lobe,  aiul  a  prominent  black  lunule  marks  the  inner 
limit  of  the  incision.  Secondaries  luteo-fuscous,  darker  in  the  male, 
paler  at  the  amd  angle,  crossed  by  a  dark  median  and  a  i»ale  subtermi 
iial  line.  There  is  also  a  narrow,  sonu'tinu's  interrupted  black  tenninul 
line,  and  a  dusky  discal  lunule,  the  latter  <d'ten  absent.  JJeneath,  i)ale: , 
reddisii  gray,  both  wings  with  a  dusky  extra  median  aiul  a  pale  suit 
terminal  line,  the  latter  frecpiently  in  great  i)art  obsolete.  A  dusky 
discal  lunule  on  the  primaries,  and  a  rather  prominent  Idack  lunule  on 
the  secondaries. 

Expanse  of  wings,  L'L' to  li^  mm.=0.!»0  to  1  inch. 

llAniTAT.— Canada  to  Tc Act.  ;  Central  States;  ]S'ew  York,  May  and 
August. 

There  is  little  variation  in  this  species  except  in  ground  color,  and 
that  is  extremely  slight.  The  most  prominent  oriuiinental  feature  is 
the  broad,  outwardly  diffuse  transverse  anterior  line,  and  in  the  male, 
the  \)hu'\i  mark  terminating  the  incisure.  On  <,'omparison  a  very  clo-c 
correspondence  will  be  noted  between  the  markings  of  this  species  and 
those  of  Ilctcrof/rd in)H((  puromKsalin,  iind  the  genera  are  certainly  related. 

The  other  peculiar  features  of  the  species  have  been  alluded  to  under 
the  generic  heading.     It  is  rather  common  in  most  portions  of  its  range. 


Genus  DERCETIS,  Giotc 

IXIH.  (Jrotc,  linll.  I'.  S.  Oeol.  .Siiiv.,  IV,  ISO. 
Head  moderate;  eyes  large  but  hardly  ]>rominent:  front  smootli, 
with  a  distinct  intei'antennal  tuft.  Ocelli  distinct,  situated  close  to  tlio 
compound  eye  and  to  the  base  of  the  antenna'.  Palpi  long,  prqjeciled 
straight  forward  <n'  a  little  oblicpie,  practically  alike  in  both  sexes,  with 
the  usual  upright  vestiture,  the  terminal  joint  pointing  upward,  the 
vestiture  coarse  and  somewhat  iini)erfectly  truncated  at  the  ti^),  makiiijj 
it  somewhat  triangular.  Tongue  moderate,  or  rather  weak.  Anteii!i;i' 
nu)derate  in  length,  set  well  up  on  the  vertex  and  not  encroa<diin,i;  .it 
all  on  the  front.  In  the  fenude  they  are  simjde,  in  the  male  pectinated, 
th<- jK'c; 'nations  proportionately  very  stout  and  coarse,  not  extendi iiu 
to  the  tip,  ditlering  (juite  markedly  in  the  species  and  without  spci  lal 
iiu>ditications.  JJody  moderate,  abdomen  conic,  cylindrical,  slightly  or 
not  at  all  exceeding  the  anal  angle  of  the  secondaries.  Legs  loi;:, 
clo.sely  scaled,  the  tibne  spurred  as  usual.  In  the  male  the  fore  tibi  •■  is 
somewhat  shortened,  with  a  moderate  extended  process  anteriorly,  :int 


'f^. 


A    REVISION    OF   TIIK    DELTOID    MOTHS SMITH. 


83 


reaching  the  tip  of  tlio  rloiif^iitod  lirst  taisal  joint,  and  not  covering 
;iny  bnish  or  pencil  of  liair  or  specialized  scah's.  The  wings  are  char- 
acteristic; the  i)riinaries  are  broadly  trigonate,  '  le  ap«^x  acute,  the 
outer  margin  distinctly  angulated  at  tlic  middle,  excavated  between 
I  hat  Joint  and  tlu;  apex  and  markedly  ol)li(|ue  toward  tlu^  hind  angle, 
riie  seccnularies  have  the  outer  margin  somewhat  retracted  opposite 
Ihe  cell.  The  yenation  is  probably  somewhat  variable  on  the  primaries. 
As  described  by  Mr.  Grote  no  accessory  cell  is  present,  an<lsoit  seems 
on  one  specimen  examined  without  denuding.  On  a  bleached  wing 
i)cfore  me  the  ac(;e8sory  cell  is  present,  though  narrow,  and  vein  10 
arises  from  this;  the  venation  is  <piitc  normal  in  fact.  It  is  probable 
I  liat  the  cell  may  be  fre((uently  absent  or  so  redm-ed  as  to  appear  so, 
and  in  such  eases  8  and  10  will  seem  to  or  actually  arise,  from  the 
subcostal.  On  the  secondaries  in  the  specimen  under  examination 
veins  3  ami  4  are  on  a  stalk  beyond  the  end  of  the  cell,  v  Idle  5  is  out 
of  the  median  by  a  short  curved  branch  ov  loop. 

This  genus  is  a  well-marked  one  and  (juite  characteristic.  The  angu- 
lated wings  it  shares  with  I'alfliis,  but  they  are  widei-  and  compara 
tively  shorter.  The  palpi  oiler  nothing  unusual.  The  fore  tibia'  of  the 
male  show  the  characters  of  the  llvrminia,  but  in  a  very  re«luced  form, 
and  no  brushes  or  tufts  of  hair  or  scales  are  ju'esent.  The  antenna'  in 
the  male  are  remarkably  coarse,  with  rough  vestiture,  long  joints,  and 
heavy  pectinations. 

Two  species  are  described,  both  of  them  small  and  light  purplish 
gray  in  ground  <!olor. 

Vitrea  is  the  larger,  somewhat  broader  winged,  with  a  reddish  or 
brown  sutl'usiou  and  a  wMiite  reniform.  The  pe(!tiuatioiis  of  the  male 
antennae  are  long  and  stout,  about  twice  the  length  of  the  joints, 
laterally  ciliated,  and  with  long,  slender  bristles  near  tip. 

Pi/f/itHra  is  decidedly  smaller,  darker,  more  pur])lish  gray  in  color, 
tlie  reniform  yellow,  with  a  central  dark  lunule.  The  pectinations  of 
the  male  antenna;  are  hardly  longer  than  the  joints,  irregularly  set 
with  rather  long,  tine  hair  ami  with  a  very  long,  moderately  stout 
laistle  at  their  base,  arising  out  <»f  an  enlargement  of  the  joint  itself 
uither  than  of  the  pec^tination. 

The  species  are  not  common  and  rai-ely  represented  in  collections; 
licrhaps  because  they  have  been  considered  as  micros. 

Dercetis  vitrea,  (J rote. 

1.S78.  (hotc,  Hull.  II.  S.  (;.!()!.  Snr\..  1\  ,  IST.  />mr/i.s. 
(riouud  color  light  juirplish  gray,  with  a  faint  reddish  sull'usicm. 
Head,  thorax,  and  abdomen  paler,  nearly  white.  Primaries  with  a 
K'ddish  suttusioii  over  the  costal  regit)n,  becoming  uku-c  prominent  and 
<littiise  to  the  transverse  posterior  line,  beyond  winch  it  does  not 
cxt<'iid.  Transverse  anterior  line  slender,  brown,  irregular  in  course, 
I  lid  variably  outcurved  in  tlie  interspaces,    '''rans verse  posterior  line 


4 


5 
f 


84 


lUTLLKTIN    IX,  KMTKD    STATKS    NATIONAL    MUSEUM. 


Hlendor,  d«Miti('iiliit«'  or  cnMinlnto,  as  a  whole  (iiiito  evenly  otitcnrvod, 
soiiietimes  a  little  drawn  in  below  the  siibnn'dian  vein.  Snl»terniinal 
lino  vafjne,  denticulate,  dusky,  emphasized  by  white  scales mitwardly, 
sonietinu's  scarcely  traceable.  A  series  of  small  ternniud  black  dots, 
more  prominent  in  the  excavation  below  apex.  ()rbi(;ular  wantinj,'  in 
my  specimens.  Keuiform  uprij^ht,  white,  outwardly  shaded  by  rusty 
red  brown,  which  sometimes  divides  it  centrallv.  Secondaries  whitish, 
a  little  stained  outwardly  or  toward  anal  an^le,  with  a  fiiiut  crenulate 
discal  line  continuing  the  transverse  jxisterior  liiu>  of  primaries  and  a 
seriesof  distinct,  blackish  t(^rmimd  luuules.  Heneath  paler;  primaries 
with  the  costal  and  outer  nuirpn  stained  with  brown  and  with  an  outer 
line,  which  is  well  marked  on  costa  only.  Secondaries  more  coarsely 
l)owdered,  with  a  discal  dot,  and  the  markinjjs  of  the  upper  side  faintly 
reproduced. 

I'^xpanse  of  win^s,  18  to  20  nun. —  0.72  to  O.SO  inch. 

Hauitat. — New  York  and  Texas  in  .luly;  Illinois  in  May;  I'^astern 
and  (Jentral  I'nited  States. 

I  have  never  had  any  lar^j^e  number  of  si)ecimens  of  this  species,  and 
have  never  seen  any  reacliinji  in  size  those  mentioned  by  Mr.  Grote: 
25  mm,  which  is  i)robably  an  error.  The  oidy  variation  apparent  in 
the  s])ecimen8  before  me  is  in  the  {j;round  color  and  the  consequent 
relative  distinctness  of  the  transverse  maculation. 

Dercetia  pygmeea,  Groto. 

187S.  Grote.  Hull.  U.  S.  (iool.  Surv.,  IV,  187.  Ihrcctis. 

Ground  color  purplish  yray,  darker  than  in  l>.  r/7rm,  but  with  essen 
tially  the  same  markings.    There  is  a  s(unewhat  more  reddish  suttusion 
through  the  center  of  the  primaries,  but  no  determinate  shading.     The 
reniform  is  yellow,  with  a  central  lunule,  and  the  transverse  posterior 
line  is  a  little  metre  even  than  in  its  ally. 

Expanse  ot  wings,  14  t<>  1(5  inm.  =  0.()0  to  0.70  inch. 

Hahitat.— Florida;  Texas  in  July. 

The  smaller  size,  darker  color,  and  yellow  reniform  will  rea<lily  dis 
tinguish  the  species.  It  is  obscurely  marked  and  the  description  would 
be  closely  a  repetition  of  that  of  I>.  ritrro.  It  seems  moi-e  rare  than 
its  ally,  but  will  probably  be  found  in  others  of  the  Southern  States. 

Genus  P  A  L  T  H I  S ,    II  ii  lnuu-. 

ISKj.  liiibncr,  VcrzeicliiiisH,  312. 

lS5!t.  Willker,  Cat.  iiiit.  Miis..  I>t!]).  HctcioctTa,  XVI,  1.^>1. 

(  Uiniima,  Giioiioc. 
18.>l.  Giieiit'c,  Species  General,  Deltoides,  U5. 

Mardara,  Walker. 
IH.")!*.   Wnlkor,  Cat.  Brit.  Mns.,  Lep.  Heferocera,  XVI,  1,57. 

Head  moderate;  eyes  comparatively  large,  globo.se.  naked.     Kmnt 
with  an  interanteninil   tuft.     Ocelli   on   the  vertex,  c1o.se  to  the  com 
pound  eye  and  .some  distance  back  from   the  base  of  the  antenn  . , 


f^ 


A    KKVISION   OF   Tin:    DELTOID    MOTILS — SMITH. 


85 


iirvtMl, 
i-ininsil 
iiidly, 
L  (lota, 
:in}?  in 
r  rusty 
hitish, 
Miuliitc 
«  iiiul  11 
imaries 
u  outer 
oarsely 
faiutly 


1*^  astern 

ies,  and 
.  Grotc. 
aretit  in 
sequent 


h  essen 
uitl'nsion 


Tlu' 


If?- 
losterioi' 


K 


lily  (lis 
)li  would 
ari^  than 
States, 


I.  Front 
I  ho  coin 
antenn  '• 


wliich  are  insert(Ml  well  toward  tiie  IVonl.  Toiij^-u*'  moderate.  l'al|)i 
very  long;  in  the  (eniale  dnceted  straifjrht  forward,  the  terminal  joint 
set  n(MMly  iit  ri^i'hf  angles  to  the  second  and  poinlin;;  upward;  v(U'y 
Mincli  llattened,  (1m',  npri«;ht  scales  nnnsnally  Ion;;,  and  on  Ihc  terminal 
joint  dilated  at  ti|>  ami  almost  sipnuely  cut  oil'.  In  the  male  the  palpi 
are  shorter,  re(Mirved,  with  a  nuMohranous  appendage  to  the  third. joint, 
whu'h  extends  haek  to  the  liasc  of  tin'  thorax  ami  contains  a  pencil  of 
line  yellow  hair,  cai)al»le  of  faiilike  expansicni.  Antenna'  lonjf,  exteiui- 
iny  to  the  ont«'r  fourth  of  the  priniaiies  ;  in  the  female  simple,  in  the 
nnd«^  with  lateiai  Inistles,  varying  in  the  species.  Le^s  htn^and  stout ; 
middh^  and  hind  tibia'  with  the  usual  spurs;  in  the  nmie  tlie  anterior 
lejis  have  the  tihia  extrenu'ly  shoit ;  hut  with  a  larj;e  ami  broad  outer 
piocess,  densely  ('h)thed  inwardly  with  iony'  Inoad  scales,  and  eo\'erin<? 
a  groove  on  the  basal  Joint  of  taisus  in  which  lies  a  pencil  of  line  hair 
which  s<'ems  not  capable  of  fanlike  expansion.  The  unusiudly  dense 
mass  of  lonj;,  liroad  scales  ^ives  the  piocess  a  inoplike  appearance 
toward  the  tip.  When  the  process  is  mo\ed  aside  from  the  tarsus  it  is 
seen  to  have  a  slender  membranous  extension  at  tln^  tip,  while  at  the 
base  of  the  tarsus  is  a  movable  linjierlike  nuiinber,  dilated  at  the  tip 
and  furnished  with  hooks.  1  have  met  with  this  els(^wher(^  in  the 
present  series  in  only  oin>  instance,  and  have  no  suyg'-stion  to  oiler 
coiu'crninji'  its  ])robable  use.  Primaries  narrow,  elongate,  the  costa 
depressed  toward  the  middle,  (v-nvex  before  tlui  apex,  which  is  acute 
and  somewhat  i)rominent.  Outer  marj>in  somewhat  excavated  below 
the  ai^ox,  obtusely  an^ulated  at  or  above  the  middle,  oblicjue  thence  to 
the  inner  margin,  which  is  about  one-third  shorter  than  the  costa.  In 
venation  it  lacks  tlu^  accessory  <!ell,  and  veins  (I,  7,  S,  and  1(>  arise 
nearly  togetlier  from  the  end  of  the  subcostal,  !>  out  of  S  before  the 
apex.  The  body  is  moderate,  the  abdomen  slender,  cylindrical,  extend- 
ing to  or  Ji  little  beyond  tiu!  anal  angle  of  the  secondaries. 

This  genus  is  readily  recogniz(^d  by  the  narrow,  angulated  primaries 
and  by  the  peculiar  palpal  structure  of  both  sexes.  No  other  genus  in 
nur  fauna  has  the  peculiar  appendage  bearing  an  exy)aiisil)le  brush  or 
pencil  of  hair  in  the  male.  The  structure  of  the  fore  legs  in  the  latter 
sex  is  after  the  Herminia  type,  though  characteristically  moditied  as 
above  (hjscribed. 

We  have  two  species  which  are  readily  distinguishable,  and  yet  very 
similar.  P.  (ingnhilu  is  somewhat  the  larger,  with  rusty,  red  brown 
iiiaikings  over  a  more  yellowish  base,  and  a  yellow  patch  in  the  exca- 
\  ation  on  the  outer  margin  below  the  apex.  The  sub-terminal  line  has 
;i  --mall  W  at  the  middle. 

/'.  (isopialit!  is  smaller,  darker,  m(»re  imrplisii  brown,  the  marking 
l)Iackish,  while  a  blackish  patch  on  the  excavation  below  apex  replaces 
the,  yellow  of  /*.  aiKjulalis,  and  the  VV^  of  the  subterminal  line  is  much 
!i!ore  prominent,  usually  extending  to  the  margin  and  completely  cut- 
titiy  the  terminal  space.   Structural  characters  are  also  present,  readily 


4 


i0 


,.^.. 


%, 


IMAGE  EVALUATION 
TEST  TARGET  (MT-3) 


w 


I 


12.0 


I.I 


1.25 


us 


i;£ 


IIIIIM 

1.4    11.6 


'^V. 

%  ^ 


/A 


o^. 


Hiotographic 

Sciences 
Corporation 


33  WEST  MAIN  STREET 

WEBSTER,  N.Y.  14580 

(716)  872-4503 


'4 


^ 


0 


V.A 


o 


6"^ 


8r> 


niTLLETIN    J8,  UNITED    STATES   NATIONAL   MUSEUM. 


W: 


sepaiatiiij;-  tlic  two.  In  /'.  (iiiniilal is  thv  male  aiitennal  joints  are  moder- 
ately long,  not  iiiiirUt'd  wlicn  <lenu(le(l,  and  only  slightly  so  when  clothed 
with  scales,  with  moderate*,  slender  lateral  bristles,  and  quite  a  dens.' 
fringing  of  shorter  cilia  beneath;  each  arising  from  a  small  tubercle 
or  sensory  pit.  The  female  piilpi  iire  also  long<!r.  /*.  asopialis  has  the 
antenna!  Joints  in  the  nnde  shorter,  more  nmrked,  the  lateral  bristle^ 
longer  and  stouter;  but  tlie  ciliations  from  sensory  pittings  much 
reduced  in  nuiiiber.  The  paJpi  of  the  female  are  soiinnvhat  shorter. 
but  the  terminal  Joint  is  longer  and  very  nuich  broader;  altogether 
more  largely  developed. 

The  species  are  common  ;ind  ar<^  coincident  in  range,  covering  the 
entire  Eastern  and  <"entral  United  States,  extending  north  well  into 
Canada  and  t<outh westerly  into  Texas. 

AXAr.VSlS    OK    Tlir,    Sl'r.CIKS    (IK    I'AI.TMIS. 

TiRrgor;  rusty  red  lintwii:  a  ycillow  l)l(tt('li  lu'low  ajx^x  of  priiiiinies AN'(iCr.Al,i>. 

Smallt'i';  iini'|ilisli  Ihowii;  i\  Itlack  ]iiit(li  Ixlow  tlir  apex  ol'  |»iiiiiari<!s asoi'IAI  i>. 

Palthis  angulalis,  IFiildn-r. 

17!Ki.  Hiihiicr.  Scl)in(Mtfrliim«"  Kiiiui)as,  I'yr.,  (iu'.  107.  /'//m/(«. 

181ti.  liiibncr,  Vcr/,cicliiiiss,  :!ll.',  I'allhix. 

182.").  'rroitschke,  Schinettuiliui^c  Eir.upas,  V,  'M\,  Ilijpena. 

18.52.  ircrricli-ScliaotTor,  lOiiroii.i'istilid  Schiiu^ttorliuni'.  1582.  Iltrmiiiid. 

1851.  tiueiK'C,  Species  (it'iicral,  l)(!lt()L(le^s.  i);"),  Clinijima. 

18.')i).  Walkor,  Cat.  «rit.  Mus.,  ilotcrocera.  XVI,  l.">2,  Palthin. 

1872.  (iroto,  TraiiH.  Am.  i^iitoinolotrical  Soc,  !\',  107.  CJ(ni;itun. 

1873.  (iioto,  Trans.  Am.  Kntomological  Soc,  I\',  30!),  r<illliis. 
arachi fhiiaalia,  Walker. 

18.59.  Walker,  Cat.  Brit.  Miis.,  ilctcocera,  X\'I,  1.57,  Mardina. 
18!);?.  ^m\\\\,  Ihill.  44,  II.  S.  Nat.  Mils..  385,  pr.  syii. 

Ground  coloi'  varying  from  yellowish  or  rusty  red  brown  to  purplish. 
Head  and  thorax  concolorous,  nbdomen  ])aler,  less  brown.     Primaries 
with  the  markings  distinct  and  contrasting.    Transverse  anterior  line 
slender,  single,  ;i  little  oblitpie  inwardly,  but  outwardly  convex.    Trans 
verse  posterior  line  slender,  single,  brown,  rather  evenly  bisinuate. 
Subterminal  line  rarely  comi»lete,  i)ale.  rather  even  excejitat  about  m'd 
die,  \vhere  it  is  best  marked  and  forms  a  small  W,  which  in  none  of  tiie 
specimens  seen  by  me  crosses  the  termiiiiil  s])ace.     A  brown,  continuoii-^ 
terminal  line.    There  is  a  broad  ol)li(ine  median  shade  which  is  some 
what  Vcague  and   indefinite  from  the  costa  to  the  median  vein,  theiv 
becomes  a.  rich  velvely  biown,  sharply  <leline(l  inwardly  but  diffux' 
ontwardly,  broadest  on  the  internal  margin.     Orbicniar  small,  yellow 
or  brown,  or  entirely  wiuiting.     Ifeniform  oldong,  oblicpie,  rich  velv<'t.\ 
brown  in  'Mtlor,  with  w    eonco])rons   centi'iil  line.      Along  th(>,  c(>st:i 
before  the  ai)ex  is  usually  a.  richei'  brown   shade,  below  which  <m  tlif 
outer  nnirgin  is  a  somewhat  lunate  yellow  patcli,  varying  somewhat  in 
IMominence.  and   this  in  tnrn   is  interiorly  followed  in  the  termin;il 
space  by  a  sonu'what  darker  shading  which  is  sometimes  little  nuirkeil. 


m 


A   REVISION    OF   THE    DELTOID    MOTHS — SMITH. 


87 


Secondaries  whitish  to  yellowish,  or  fuscous,  with  ii  yellow  or  brown  or 
Muolvy  shade  on  the  outer  niarj-in  before  the  anal  an->le;  crossed  by  a 
narrow  darl:  line  which  is  <'oiitinuous  witli  the  8ul)tei  uiinal  lino  of 
primaries.  A  narrow  brown  Iin3  at  base  of  the  frin<>es,  which  nearly 
;ii;ree  in  color  with  those  ol' the  primaries.  PxMieath  i)alcr,  i)o\v(lery, 
iM'th  winys  with  the  outer  lines  of  upper  side  reproduced,  on  i>riniaries 
iiinch  less,  on  secondaries  rather  more  distinctly;  secondaries  also 
with  a  discal  sj)ot. 

Iv'cpanse  of  winj^s,  22  to  2.~>  mm, =().!)()  tc  1  iiudi. 

ilAuiTAT. — Canada  in  June;  Xcw  ^'ork,  June  to  Auiiust;  District  of 
('oluiid)iain  Afay;  Missouri,  May  and  June. 

This  pretty  little  species  is  quite  (ionnnon  throujihout  its  raujue  and 
comes  readily  to  light.  I  ts  chiet  differential  features  have  been  already 
lK)inted  out,  and  the  s))ecie8  siiould  not  be  ditlieult  of  rec(»<>nition. 


Palthis  asopialis,  (iii('ii('»\ 

\H'A.  finon('(\  S|>(!cios  (icnoriil,  !><'lt()i(l('s,  IIH,  <'htin/m(i. 

1859.  Walker,  Cut.  I5iit.  Mns..  lI.-t.Toccra,  .\V1,  l.-)2,  I'ulthis. 

1872.  (irotc,  Trans.  Am.  Kntinnoli.^fical  tint-.,  IV,  108,  (Idtnimu. 

18VH.  (irote,  Trans.  Am.  Hiitoiiioloi-ical  Soc,  IV,  'M)\),  Vnlthitt. 

Ground  color  a  purplish  dark  brown.  Head  and  thorax  coiu;olorous; 
Mbdomen  a  little  paler.  iMinuiries  with  the  maculation  fairly  well 
marked,  .sometimes  i»rominent.  Transverse  anterior  line  single,  nar- 
row, blackish  or  brovvn,  even,  outwardly  bent  over  the  costa;  but  as  a 
whole,  inwardly  obli(|ue.  Transverse  posterior  line  narrow,  dark, 
irregularly  dentate  and  angulated;  as  a  whole  outcurved,  with  a  sniidl 
iiulrawing  in  the  submedian  interspa'c  Sometimes  the  line  is  accom- 
panied by  a  narrow  [)aler  shadini';,  which,  iiowever.  is  not  pro.uiiient. 
Subterminal  lin«'  narrow,  pale,  outwardly  oblicpu'  from  costa,  forming 
a  prominent  W  at  the  middle,  which  cuts  the  terminal  s|»ai!e  to  the 
outer  nnirgin.  A  narrow,  dark,  terminal  Hue.  An  oblicjue,  broad, 
median  .shade,  which  is  sometimes  obscure  for  its  entire  course;  but 
more  usually  becomes  prominent,  velvety  blackisli  bi-own  below  the 
iiiedian  vein,  but  <loes  not  expand  mu('h  on  the  inner  margin.  Orbic- 
ular, a  black  dot  or  wanting.  Reniform  variable;  sometimes  ii!i  almost 
upright  black  nmrk  annulate  by  pale  scales:  soiui'times  a  large,  more 
or  less  indefinite  bhudc  blotch,  with  all  sorts  of  intergiades.  Tlu; 
apex  is  concolorous;  but  below  it  and  to  the  W  of  the  subterminal 
line  the  terndnal  si)ace  is  black  tilled,  and  (piite  usually  the  dark  till- 
ing extends  through  the  inferior  p(»rtion  of  tlie  same  space,  thougli  not 
<'ontrrstingly.  {^secondaries  bh.eUish  gray  or  fuscous,  with  an  outer 
dusky  and  a  ])ale  subt«Mininal  line,  the  latter  i)re('e(led  by  a  darker 
shade.  A  darker  indelinite  bh)tcli  before  the  anal  angle.  P>eneatli, 
smoky  or  blackish,  powdery,  with  tiie  outer  lines  of  upper  si<le  leju'o- 
duced  more  or  less  perfectly. 

Ex))anse  of  wings,  L'l  to  '_'.'>  nun.  =  O.Sf  to  (l.'fj  inch. 


88 


lUJiJ.KTIN    18,  UN'.TKl)    STA'l'KS    NATIONAL    MUSKUM. 


llAiuTAT.— VV^itli  /'.  (uiijnUdis.  and  at  same  dates. 

Tliis  species  is  ])erliai)s  the  less  (lominon,  especially  m  the  inoiv 
uoitln'in  part  of  its  laiige,  and  is  readily  distinguishable^  by  its  smaller 
size  and  darker  color,  and  by  the  dentate  transverse  posterior  and 
Hnl)t«'rminal  lines,  as  well  as  the  black  i)ateh  below  the  apex.  TIk^ 
renilorm  here  also  is  blaek,  and  often  a  large  Idotch,  (littering  in  I'oriii 
\n  I'.oiu/Klolis  the  reniiorm  is  always  oblicjue  from  below  outward, 
while  in  this  sp(M'ics  the  oi)i)osite  tendency  prevails,  though  it  is  by  no 
means  constant.  The  structural  and  other  points  of  ditt'erenee  have 
been  already  pointed  out  elsewhere. 

Genus  C  A  P  I  S  ,  (Jioto 

18H2.  C}rot»%  (^aiiadiim  I'.iitouioloj-ist.  XIV,  20,  11!) 
1882.  Siiiitli.  Caniiiliun  KiUoiiioloj-ist,  \1V,  100. 
1882.  Grotty  Piipilio,  II.  is.-). 

Head  moderate  or  ratluM'  small,  front  narrower  in  the  male.  Eyes 
rather  small,  though  prominent,  globose,  naked.  Tongue  nuiderate. 
Palpi  oblique  oi-  nearly  straight,  varying  in  ^1«.^  same  sex,  well  exceed 
ing  tlie  head,  bill  no*  excessively  long.  Seeoinl  ;oint  with  ratlivi' loose, 
scaly  clothing,  directed  both  upward  and  downward  ;  the  joint  therefoii' 
somewhat  enlarged  at  ihe  tijt.  Third  Joint  less  than  one-half  the  length 
of  the  second,  smoothly  clothed,  not  pointed.  T'lont  without  a  pointed 
tuft.  Antenme  simple  in  the  ftmale;  feebly  eiliate  in  the  male;  moder 
are  in  length.  IJody  moderate,  thoiax  luoportionately  small;  abdomen 
reaching  to,  but  hardly  exceeding  the  anal  angle  of  the  se<*ondarics. 
Legs  stout,  smoothly  scaled,  the  orilinary  spurs  of  middle  and  hind 
tibia'  long,  stout,  nneipial.  Anterior  ieinora  in  the  male  somewhat 
enlarged  basally  and  grooved  interiorly,  but  not  otherwise  modified. 
Primaries  modi'rate,  broad,  rather  abruptly  widened  at  base,  the  outer 
margin  even,  arched,  only  a  little  obli(pie,  hence  the  costal  and  inner 
margins  of  nearly  the  same  length.  Venatiou  normal.  Secondaries 
proportionate.  Venation  normal,  save  that  o  and  4  are  often  on  a  stalk, 
and  vein  5  is  distinctly  weaker  than  the  others. 

There  is  only  a  single  species  thus  far  described,  and  as  based  on  this 
the  g(>nus  is  readily  distinguished  from  all  others  by  the  broad,  obtuse 
wings,  which  are  suddenly  widened  at  base  and  not  trigonate,  and  by 
the  comparatively  short  i)alpi.  Fiideed,  the  genus  on  analysis  shows 
the  deltoid  characters  somewhat  obscurely. 

Capie  curvata,  Grote. 

1882.  Grote,  Canatliiui  Kiilonuilon-ist,  XlV,20aii(l  119,  ('apis. 

1882.  Siiiitli,  Canadian  Kiitonidlo.uist,  XIV,  100,  (apis. 

1882.  Grote,  I'ai)ilio,  II,  18."),  Capix. 

188;i.  Grote.  Canadian  Entonioloj^ist.  XV,  (i,  Capii^. 
Ground  color  a  glistening  smoky  or  bronze  brown,  varying  to  black- 
ish.    Head   and   thorax  concolorous,  abdomen    paler,  glistening  gray, 
riimaries  almost  evenly  of  the  ground  color  to  the  subterminal  line 


A    REVISION    OF    TllK    DKI/roiI)    MOTHS SMITH. 


89 


which  is  wliite  jumI  extends  quite  riyidiy  <>hli(|ue  or  ii  little  iiieurved 
Horn  the  apex  to  within  the  hind  aii-le.  lleyond  this  line  tlie  terminal 
space  is  more  or  less  sprinkled  witii  white  scales,  and  there  is  a  white 
Icrnnnal  line.  In  tlie  pah'r  specimens  tiiere  is  a  traee  of  a  black  elavi- 
form.  In  most  speeiniens  th(r  orhicidar  is  visible  as  a  wliite  dot,  often 
marked  by  a  few  l)Iack  scales,  and  the  nMiilorm  is  marked  by  a  lew 
white  and  black  scales  Ibrminj^'  no  delinite  markin<;s.  Secondai'ies 
even,  smoky  ^ray,  imma<'nlate.  I'.eiieath  smoky,  varyinf?  in  tinye,  in 
the  ])aler  speciin;>ns  with  a  discal  Innule. 

Expanse  of  winj^s,  10  to  L'.:>  mm.=().8r)  t(>  <>.!)(>  inch. 

llAMiTAT. — Canada  in  duly;  Maiue,  New  York,  New  Hampshire, 
Northern  Atlantic  and  Northern  Middle  States. 

This  species  se(uns  to  be  not  rare  in  the  more  iiortluu-n  part  of  its 
range,  and  is  very  readily  reco;.;nized.  The  smoky  l)rown  filistenin<>' 
primaries,  cnt  tonard  the  outer  mariiin  l)y  the  white  sn]>terminal  line 
and  paler  terminal  sj>ace,  are  characteiisti;-  am)  distinctive  ol  this 
species. 

Genus   SALIA,   lliihiier. 

iSlf).    Hiilnicr,  \'tii'/('iclimss,  3)>!t. 

Coiohochila,  IliiltiKT. 
181(5.   Iliiliner,  Vcr/.cirhiiisH,  ;{lt. 
IS;')!).   WiilkLT,  Cit.  Hrit.  Miis.,  Leji.  Ilctcroc-rii,  XVI,  IS 

Mailofia,  Stt'pliciis. 
1827.  Stephens,  in  Curtis'  liiitish  Insects,  l")*). 
18.")7.   Ledurer.  XoctuiiieM  Enropos,  211'. 

Head  moderate,  eyes  i)rominent  thonjih  not  larjie,  naked.  Tongue 
strong,  moderate  in  length.  Ocelli  <listinct,  situated  close  to  the  com- 
pound eye  and  rather  dose  to  the  base  of  the  antenna'.  The  latter 
are  moderate  in  lengtli  or  i-ather  short,  simple  in  rhe  feimile,  feebly 
ciliated  in  the  male.  Palpi  oblicpie,  stout,  with  the  pointiMl  fi-ontal 
tuft  forming  a  snout;  the  second  joint  longest,  clothed  vvith  upright 
scales;  terminal  Joint  short,  obtuse,  and  divaricate  at  tip.  Thorax 
moden-te,  abdomen  conic,  pointed  at  tip,  reaching  to  buthardl;y  exceed- 
iiig  the  anal  angle  of  secondaries.  Primaries  rather  elongated,  trigo- 
nate,  apex  i>ointed,  outer  margin  oblique,  rounded,  leaving  the  inner 
margin  about  one-fourth  shorter  than  tln^  oosta.  Venation  normal. 
Legs  stout,  nornijil  in  botli  sexes.  1'his  genus  is  distinct  by  the  rather 
short,  obli(|ue  i)alpi,  whi(di  scarcely  exceed  the  frontal  tuft,  and  by 
the  pointed,  rather  narrow  wings,  with  three  subpi'.'allel  oblicpie  trans- 
verse lines. 

We  have  two  rather  rare  s])ecies  in  our  fauna,  and  one  is  identical 
with  a  luiropean  s]»ecies.  if  the  locality  on  the  specimen  is  correct.  Of 
these,  iS.  iiit<'rj)utirf((  is  the  smaller  and  has  the  ordinary  s])ots  indicated, 
while  S.  .sdlindin  is  much  laiger  an<l  has  no  tiace  of  orbicular  or  reni- 
form.  Of  the  latter  s|)ecies  I  have  seen  only  one  specimen,  given  me 
by  Mr.  Giote  and  labeled  Texas.  It  seems  to  agree  perfectly  with 
Euroi)ean  specimens,  and  it  may  be  an  imported  form  with  an  erroneous 
locality. 


It;  J* 


I    > 


90 


BULLETIN   48,  UNITKD    STATES    NATIONAL    MrSEUM. 


Lcdorer  says  of  the  early  stages,  tliat  the  larva  is  uniform  velvety 
jirccii,  Avitli  but  14  leys,  and  lives  in  August  iu  willows,  the  moth  makiiij;- 
its  appearance  in  May  and  rlune. 

According  to  (xnen^'e  the  caterpillar  has  the  incisions  yellowish,  the 
head  coucolorous,  and  the  stigmata  black. 

ANALYSIS   0|-    Till'.    SI'KCIKS   OK    SAMA. 

SiujiUit;  tlie  ordinary  spots  iilwavs  iiulifiitcd  ami  iiHiially  well  marloMl.iNTKUi'UNci a. 
Lar}i»;r:  urdiiiiiry  spots  wjcitiiij? saucaus. 

Salia  interpimcta,  (iroto. 

1S7L'.  (ii()t(\  Tr:in8.  Am.  Entomological  Soc,.,  IV,  ill),  MacUpn. 
IS?;!,  (iroli-,  Trans.  Am.  Er,toniol()<?i(ial  Soc,  IV,  IJOi),  CulohochUa. 
187:?.  (Jroti',  linll.  Bnfl",  Soc.  Nat.  Sci.,  1, 170,  Colobochila. 
lS7r).  (irotc,  ISnll.  IJutl".  Soc.  Nat.  Sci.,  II,  223,  Siilkt. 
ISSO.  (irotc,  Canadian  Entomologist,  XII,  220,  .SVf/m. 

saiignn,  Zellcr. 
1872.  Zt'lliT.  Vcrli.  k.k.Zool.  Mot.  G.s..  XXII.  •U)2,  r'o/o/vWa/a. 
lS7:i  (irotti,  Bull.  Hiiif.  Soc.  Nat.  Sci.,  I.  170,  pr,  syn. 

riifn,  (Jrote. 
18815.  (Jroto,  Canadian  EntoiiKdogist,  XV/M.Salhi. 

Mr.  Grote's  devscriptions  are  as  follows: 

^'■MinlojKi  inicrpunctn,  (Jrote. — Primaries  dark-shaded  pearly  gray, 
finely  irrorate  with  black  scales,  with  three  nearly  e(iuidistant  trans 
verse  even  brownish  lines  preceded  by  pale  coincident  shades,  the  first 
line  nearer  the  second,  while  the  third  is  slightly  arcuate,  coutiuued 
from  apices  to  internal  margin  within  the  angle.  Betweeu  the  first 
and  second  lines  a  black  dot  on  the  disk,  the  orbicular.  Beyond,  but 
approximate  to  the  second  line,  a  larger  black  dot,  the  reniform.  A 
series  of  minute  intersi)aceal  terminal  dots.  Tliese  are  more  continu 
ons  on  the  i)ale  secondaries,  which  show  a  discal  dot  beneath.  Legs 
darker  than  the  body  parts  and  abdomen  above.  Expanse,  20  to  21' 
mm." 

"•H(dlnrnfa,  n.  s. — Primaries  brownish  gray,  crossed  by  three  oblique, 
yellowish,  narrow  lines.  Inner  line  with  a  costal  proje(;tion.  The  first 
discal  dot  is  close  to  it.  The  middle  line  is  a  little  waved  and  followed 
by  a  difl'use  black  shading,  which  obscures  the  outer  discal  <h)t.  The 
outer  line  is  a  little  bent  at  the  middle,  and  loses  itself  to  apex.  The 
snbterminal  field  whicli  follows  is  suffused  with  reddish  brown  and  lini 
ited  by  a  very  fine  irregular  line;  terminally  the  wing  is  again  brownisli 
gray  and  shows  a  faint  festooned  line;  fringes  paler,  a  little  brownish- 
Hind  wings  luseous  gray  with  brownish  fringes  beneath,  with  bhu'lv 
discal  dot  and  outer  line,  the  surface  paler,  irrorate.  Arizona  Coll.,  1>. 
Neumoegen,  esq.     Ivxpanse,  22  mm." 

Expanse  of  wings,  20  to  22  mm. =0.80  to  0.00  inch. 

llAiJiTAT.— .Massachusetts  to  Fhirida;  Texas,  Arizona. 

Tothecourtesy  of  Mr.  (irote  I  owed  a  type  of  Salia  riij'a,  which  is  now 
in  the  collection  of  the  United  States  National  Museum,  and  1  hav*' 


A    REVISION    OF    THE    DELTOID    MOTHS — SMITH. 


91 


iilso a  specimen  o^"  aS.  intcrpunctafvom  the  same  rejuion.  Arizona.  There 
is  a  little  variation  in  j;roiin«l  eolor  iind  the  ;iiiionntot  sliadiny- to  tin! 
transverse  lines,  and  this  is  really  all  that  separates  tlie  nominal  si)eeies 
licscribed  by  Mr.  (Irole. 

The  species  does  not  seem  to  he  common  aii.\  where  within  its  ranj;e, 
and  it  is  toiind  in  very  few  collections  onlv. 


Salia  salicalis,  Fahriciiis 

1794.  Fahriciiis,  Enli>im>l()jj;i!i  Syat<Miifiti(;i.  III.  :i(!!t.  I'jiralix. 

IS51.  (iiuMit'o,  Species  (icucial,  DoUoides.  2'2,  M<(ih>iiii. 

isns.  Walker,  Oat.  Brit.  :Mus  .  H^teroeeia.  XVI,  Is,  Calobovhijlu. 

( Ironnd  color  pearl  ^ray,  with  black,  rather  sparse  ])owderinjiS.  Head 
find  thorax  concolorons;  abdomen  more  Inteons  or  smoky.  Primaries 
with  three  even  inwardly  obli(|ue  fas(;ia,  coiisistin;;-  of  a  browMi  and  a 
yellow  line  or  shade,  the  latter  tollowinn'  tlie  basal  line,  but  ])recedinj>- 
the  others.  Tlie  inner  line  is  eitlier  abbreviated  on  the  costal  vein  or 
it  reaches  the  costa,  bendinji'  inwardly  an  tlu^  vein.  The  middle  fascia 
ei'ossesat  jnst  abont  the  center  of  the  wiiiju,  while  theonter  is  incurved 
from  the  ajcx  to  the  margin  close  to  the  hind  an^le.  The  ordinary 
spots  ar<i  obsolete.  Secondaries  .smoky  or  yellowish,  a  little  darker 
outwardly,  with  a  trace  of  a  pale  snbtermiual  line  toward  the  inner 
margin. 

Expau.se  of  Avings,  lis  mm.  =  l.lL*  iiu-hes. 

Habitat.— Texas. 

The  species  is  easily  recogni/ed,  ditfering  b.\  its  laig*^r  size  and 
absence  of  all  trace  of  the  ordinary  sjxtts  from  the  more  common  form. 
The  bibliography  above  given  is,  of  course,  (ixtreniely  incomplete,  and 
Walker  and  Standinger  should  be  referred  to.  There  has  been  no  ref- 
erence to  the  species  in  American  jmblications  ,so  far  as  I  am  aware, 
and,  as  I  have  already  indicated,  the  American  habitat  of  the  s[>ecies 
is  not  at  all  beyond  doubt. 

Genus  BOMOLOCHA,   lliibuer. 

ISlt).  Hiibner,  Ver/eieluiisH.  IWi. 

1S.")7.  Lederer,  Noetuiiieu  EiiiopaH,  211. 

M('(lhiii)cua,  (irote. 
187H.  Groto,  Bull.  ISiitl.  Soe,  Nat.Sei.,  I,  S(i. 

AI(tciIi!/j}vii((,  ( I  rote. 
1873.  Oiote,  Bull.  BuH.  Soe.  Nat.  Sei.,  I.  3S. 

HnhiijHiKi,  (irote. 
1873.  (iiotc,  Bull,  liuli.  Soe.  Nat.  Sei..  I,  :iS. 

Lederer  describes  this  genus  as  foUows:  ]Morc  rol)nst  than  the  pre- 
vious genus  {Pechipof/on);  the  abdomen  shorter,  the  primaries  more 
pointed,  nearer  to  the  following  Jli/pemv.  Front  with  a.  pointed  tuft. 
l'all»i  horizontal,  exceeding  the  head  by  mcne  than  its  own  length; 
beneath  clo.sely  scaled,  with  a  knife-like  edge  above,  the  terminal  Joint 
small,  pointed.    Tongue  spiral.    Eyes  naked,  their  imirgins  with  stiff 


92 


IMl.LKTIN    [X,  UNITED    STATES    NATIONAL    MUSEUM. 


bristly  laslies,  Antennii'  bristlolike,  in  the  insile  with  short,  evoTiciliic. 
Tliorax  woolly,  densely  clothed,  rather  more  convex  and  stouter  than 
in  its  allies.  Abdomen  (^IcKsely  scaled,  with  hairy  dorsal  tuftinfis. 
Hri'ast  and  femora  Mitli  dense,  long,  woolly  ch)thin«-.  Tibia-  closely 
hairy  or  scaly. 

Willi  the  above  charsicterization  our  species  a^-ree  fairly  well,  save 
that  ther«'  is  a.  very  great  variation  in  the  degree  of  the  "lashing"  ol' 
the  eyes,  this  being  never  prominent,  and  usually  practically  wanting. 
The  primaries  are  large  and  broad,  i»roportionat«^  to  the  seconrlaries, 
which  arc  not  usually  developed,  and  this  charat-ter  is  really  all  thai 
separates  t  lie  genus  iVoiii  UyptiKt.  In  all  the  other  essential  characters 
the  genus  agrees  with  Ui/peva,  including  therein  the  absence  of  sexual 
moditications  in  the  mah',  except  the  somewhat  more  robust  body, 
more  woolly  clothing,  more  evident  dorsal  tufts,  and  somewhat  shorter 
and  mon^  obliipu'  palpi.  The  ])alpi  vary  in  length  quite  consider- 
ably, but  are  not  excessively  long  in  any  instance;  longest  in  the 
largest  and  smallest  of  the  species,  which  are  most  aberrant  from  tin- 
others  referred  to  here. 

A  vejy  distinct  sexual  difference  which  has  not  been  luM-etofore 
ai)preciated  is  that  the  males  are  larger,  darker,  and  «ie<'idedly  nunc 
roimst  or  woolly  than  the  females.  This  featnr«'  unites  species  that 
have  been  heretofore  considered  as  t,"  ioiibtedly  distinct  by  all  students, 
including  myself,  and  1  desire  to  creditor,  ibitler  with  the  suggestion 
that  first  iiKliiced  me  to  examine  the  s])ecimeiis  as  to  sex  and  the  rela- 
tion of  the  so-called  species  to  each  other.  The  venation  is  normal  in 
both  wings.  The  primaries  are  trigonate;  the  costa  a  little  sinuate. 
dei>ressed  centrally;  the  apex  a  little  jn'oduced;  outer  margin  quite 
strongly  outcurved,  only  moderately  oblicine,  a  little  excavated  below 
the  apex;  fringes  sometimes  feebly  scalloped. 

We  have  in  our  fauna  tw-o  (piite  distinct  series. 

In  the  first  the  median   lines  are  irregular,  particularly  the  trans 
verse  posterior,  and  the  median  sjjace  is  decidedly  darker,  contrasting 
as  against  the  pale,  oiten  whitish,  siibterminal  space. 

In  the  second  the  transverse  [losterior  line  is  much  more  even,  at  mosi 
a  little  angulated,  and  there  is  no  sharp  contrast  between  the  spaces. 
These  features  are  not  to  be  too  strictly  construed,  for  there  is  quite  a 
diflerence  in  shading,  not  only  between  specimens  of  the  same  sex  but 
yet  more  betsveen  the  sexes.  However,  by  contrasting  B.  haltimoralis, 
of  the  first  series,  with  female  B.  achatiiudis^of  the  second,  the  differ 
once  attempted  to  be  indicated  will  be  readily  ai)i)reciated. 

At  the  head  ot  the  first  series  I  place  B.  vudKdis,  in  which  neither 
transverse  anterior  nor  transverse  i)osterior  line  reach  the  hind  margin, 
but  unite  so  as  to  inclose  a  rhomboidal  dark-brown  median  space,  all  tin 
rest  of  the  wing  being  decidedly  paler. 

Following  this  come  two  species  in  which  the  transverse  anterior 
line  apparently  docs  not  reach  the  costa,  but  starts  frojn  the  base  on 


A    REVISION    OF   THE    DELTOID    MOTHS SMITH. 


93 


file  modijin  voiii  aiul  <'iirvos  ontwiiidly  to  tln^  subim'dian  vein,  wliore  it 
IS  piacticjilly  lost,  tho  inner  niaij;in  beinj;;-  pair  to  the  transverse  poste- 
iior  line,  which  also  is  faint  in  tiiis  portion  of  its  course.  The  nn-dian 
space  is  dark  brown  above  the  snbinedian  vein,  eon t rust ini;?  with  the 
white. lines  defl.<in^  it. 

In  .7^.  haUintortdis  the  transverse  jxisterior  line  is  irrefjnlar,  out- 
wardlj'  bent  over  the  cell,  thence  vt^ry  obliipu'  and  MMejrnliir  to  the 
snbniediau  vein. 

In  Ji.  hiJKf/nlis  the  transverse  i>osterior  line  is  nearly  n])ri;iht,  with  a 
single  sharp  outward  tooth  opi)()site  the  cell. 

B.  scutellaris  has  the  median  lines  complete,  white,  the  transverse 
anterior  outwardly  oblicpn?,  tiui  transverse  posterior  nearly  as  in  />.  hijn- 
Oalis,  but  more  uiu^ven.  The  contrasts  are  not  as  great  as  in  the  other 
species,  yet,  in  the  female  esi)ecially,  the  median  space  is  di.stinctly 
darker,  and  in  the  same  sex  the  subterminal  space  is  white  or  gray, 
while  it  is  more  smoky  in  the  male. 

li.  ahnHitvalis  has  the  wing  more  uniform  in  color,  but  with  contrast- 
ing white  transverse  lines,  of  which  the  transverse  posterior  makes  a 
l(»ng  ontcurve  at  its  middle,  making  the  medir.n  space  usually  wide. 
IJeyond  this  the  wing  is  more  or  less  mottled  with  bluish  white. 

Ill  the  second  series  the  median  lines  are  mucli  more  even,  not  white 
or  contrasting,  while  tlu  median  space  does  not  contrast  .solidly  with 
the  rest  of  the  wing,  the  tendency  in  this  series  being  to  lose  the  lines 
altogether.  Two  divisions  are  indicated  by  palpal  structure,  the  usual 
form  being  stout,  obli(|ue,  and  only  moderate  in  length,  while  in  two 
species  they  are  straight  and  very  long,  e([ualing  head  and  thora.<: 
combined. 

Of  the  tirst  division  of  the  second  series  the  best  marked  is  7^.  decep- 
talis,  which  has  both  the  median  lines  i)ale,  the  tran.sverse  posterior 
with  a  single  small  outward  bend  over  the  cell,  which  is  not  iufrerpiently 
wanting.  In  the  female  the  color  is  (jiiite  <lecidedly  paler,  and  beyond 
the  transverse  j^osterior  line  the  wing  is  <piite  strongly  ])owdered  with 
blui.sh  white.  The  male  is  smoky  brown  tluoiighout,  yet  even  here  there 
is  a  bluish  tinge  marked  through  the  outer  part  of  the  wing.  To  this 
species  comes  B.  pcranf/nlalis,  Harvey,  which  is,  from  the  description, 
a  male  form,  and  agrees  with  Walker's  variety  y  from  the  descri}>tioii. 

Allied  to  the  preceding  is  />.  intidc/dcfolis  (Juen«''e,  which  is  based  on 
a  female  afterwards  described  as  />.  ddntiiosdiis  l)y  Walker,  and  />.  aclia- 
tiiialis  by  Zeller.  The  male  has  been  named  />.  cidhirali.s  by  \\'alker 
and  li.  profecta  by  iMr.  Grote.  It  is  darker  in  both  sexes  than  />.  dccep- 
fdlis,  the  transverse  anteri<u'  line  nearly  or  quite  obsolete,  the  trans- 
verse jiosterior  line  rarely  pale  edged,  rather  marked  by  the  slight  (!on- 
trast  between  the  more  even  median  space  and  the  more  or  less  violet  or 
bluish  tinged  subterminal  si)ace.  with  a  small  outward  angulation  on  the 
median  vein  and  another  in  the  submedian  iiiters]>ace.  This  character 
is  constant  in  both  sexes,  though  often  obscured  in  the  male,  which  is 
very  dark  smoky  brown,  an<l  also  tiie  most  roluist  of  our  species. 


m 


T' 


9A  nULT-KTIN    l«,  rNITKl)    STATKS   NATIOXAT.    MITSKUM. 

]i.  sondtlnla  n'.semWIos  the  in-eccdiii-i,  hut  is  iliM-idedly  slij>liter  and 
more  obscMire.  Tlie  iiuilc  is  almost  iminaculate,  with  tiic  linos  barely 
traceable,  ex(',e|>t  on  (he  costa,  while  tiie-  f'ennile  has  the  angles  (»f  the 
transverse  posterior  line  better  marked,  but  the  violet  or  bluish  shade 
oi'  the  outer  portion  of  the  winjj:  «leeidedly  obscure,  powdery,  alto{^etb(r 
more  sordid. 

B.  totcKtu  is  smoky  brown  in  both  sexes,  the  median  lines  very  sleii 
der,  riviUous,  white,  fragmentary;   tlie  transverse  posterior  marked  on 
the  internal  margin  by  a  prondneut,  oblong,  white  spot,  which  distiii 
guisiies  the  species  at  a  glan(;e. 

/>'.  umhralis  is  a  curious  form,  dilfering  in  the  moie  trigonate  pri- 
maries, the  outer  margin  oblicpie  and  little  arched.  The  maculation  is 
all  obscure,  the  transveise  posterior  line  rigid  and  a  little  outwardly 
oblicpie,  starting  just  a  little  beyond  the  nnddle  of  the  costa. 

The  two  species  with  long  palpi  are  very  difierent.  />.  ((1ictali.s  is 
the  largest  of  all  our  speciies;  but  is  less  robust  than  the  nnile  li.  made- 
facidViH.  It  liiis  the  transverse  jwsterior  line  like  />*.  (Iccejttalin,  but  is 
altogether  a  more  i)owdery  form  with  numerous  ii-regular  brown  trans- 
verse striga',  which  give  it  a  distinc^tive  appearance. 

B.  citiita  is  much  the  smallest  of  the  species  and  is  i)erhaps  nearer  to 
true  Ili/prna  than  anything  heretofore  mentioned,  except  in  the  propor 
tionately  small  secondaries.     It  resenibles  />'.  loiihralis  in  having  the 
api>arent  transverse  posterior  line  (aossing  near  the  middle  of  the  fore 
wing. 

An  ally  of  this  latter  will  be  found,  ])erhiips,  in  I'Jr<(,stria  mitographu, 
Grote.  I  have  seen  only  one  of  the  types  which  lacks  the  wings  on  one 
side,  an<l  it  may  not  belong  liere  with  my  present  ideas  on  the  genus. 
I  prefer,  therefore,  to  omit  it  at  present  and  relegate  the  species  to  the 
genus  in  which  it  is  described  until  material  can  be  obtained. 

B,  (iiinulalis  also  is  not  represented  in  the  collection  belore  me,  and 
though  1  have  seen  the  type,  which  indicates  a  good  and  distinct 
species,  I  can  not  add  to  the  somewhat  scant  description. 

BomolocJia  incnsidifi,  (h'ote,  belongs  to  PIcoiiecfyptera. 

I  luive  a  single  male  s[)eciinen  from  South  .Dakota  which  indicates  a 
a  new  species  allied  to  />'.  deveptuUs,  but  this  is  hardly  sullicieutly  good 
to  form  a  type. 

ANALYSIS   <»K   TIIK    SI'KCIKS   OI'    IIMMOMX  IIA. 

1.  Pidpi  <)bli(iiu',  inodciato   in  loiiKth,  oxcewliiif;-  thciioad  by  little  more  than  its 

own  lt'iii;th :.• 

I'lilpi   istiaij,dit,   c'xccediiijj  the  head   by  the   lou«jfth   of  lioad  aud  thorax  com 
billed 7 

2.  Median  lines  of  primaries  not  reachiii<r  the   inner    margin,  uniting  inferior] 

to  iiicloHe  a  contrastingly  brown,  rhomboid  median  space manau> 

Transverse  anterior  line  not  reaching  the  eosta;  basal  sjjaee  superiorly  brown 

above  the  transverse  anterior  lino,  interiorly  pale .'i. 

Median  lines  normal,  reach  both  costa  and  inner  margin 1 . 


^yiif.  iJi4iW'i« 


^ 


w 


A    ItEVLSlUN    OF   THE    DKI/lOIi)    MoTlIS — SMITH.  95 

:i   TranHviTHo    poHtorior    ]iii<<   with    ,i  sln.n;.-    ontwiinl    Lend    ov.r    t\w  ooll,  very 

incgHliuly  iiiid  miiikcdiy  ()l)li(im'  Ixdow iiai.timouams. 

Tmiisvorso  poHtcrioi  lino  wuli  tin  ulini|it.  Hliarp  iuikIo  ..ppoHitf  tlio  coll,  lU 
(!«)iirs()  cIhu  Il(^•ll•l,v  npfulit'  <»r  "iily  ii  littlo  Kinuato lU.MiOAUs. 

I.  Medjiiu  liiH^H  iirtviinliir.  mmr  or  loss  whito,  .oiitiiistin^r,  i„,Mliiin  H\m'u   diiikor 

tlian  tii«  rest  of  tlio  winj; 5 

Mcdiiiii  lines  even  or  only  u  litM.^  anju'iihitf.  not  irrcf,Miliir;  hiiHiil  and  m'-dian  npace 
concolorouH,  Hulitcrniiiiiil  randy  witli  «tron«  contvaHts,  oft»m  couco- 
loroiiH (5 

5.  TnniHvcrHO  anterior  line oiitwaidly  oldii|nc,  strongly  doutatc;  transverso  po.storior 
lino  Mharply  jjrodiici'd   ojipoMitc   tin-   crlj,    irr»><,nilarly   Iteiit  and  Himiato 

''el«»\^' S((  TKI.I.AKiS. 

Trunsvt'rsi-  anterior  linr  irio;riiIar,  hardly  ohlii|iio;  tiansverso  jxiHterior  lino 
Mlender,   white,  sharply   delined,    widely    and    rather    evenly   <nitenrvod 

medially ahai.inkams. 

i;.  Transverse  ]io8terior  line  with  a  siiif,ne  small  an>,nilati(m  on  the  cell,  and  oven  tliis 
sometimes  wanting i>K(:|''.I'Tam.s. 

Transverse  jiosterior  line  with  a  small  aiiH;iilation  over  tlie  ctdl  and  another  in  tlie 
siihmediau  iiiters|)a(e;  nioio  rolmst;  transverse  pctsterior  line  in  tlie  male 
marked;  colors  in  the  female  bright maiiki'actaI-Is. 

Slijfhter;  transverse  position  in  the  male  scarcely  traceable,  eoloralmost  nniform; 
colors  ill  the  tenia h^  sordid souuiin  I.A. 

Transverse  posterior  line  riyid,  a  little  outwardly  ohlniiie,  starting  fnnn  nearly 
the  middle  of  the  costal  margin i  muuai.is 

Tlie  lines  lost,  or  marked  by  whitt!  scales  only;  the  transverse  jiosterior  line  with 

a  prominent,  oblong  white  patch  on  hind  margin tohimita. 

7.  Size  very  largo;  the  wing  crossed  by  nnmcroiis  brown  striga' kdktams. 

Size  very  small;  the  iiiaciilatioii  confused citata. 


lorax  con 


Bomolocha  maiialis,  Walker. 

1859.  Walker,  Cat.  Jhit.  Mas.,  Heterocera,  XVI.S;},  nijiHun. 
1870.  Kobiuson,  Ann.  T.ye.  Nat.  Hist.,  N.  Y  ,  l.\,  :^11,  Iljiinna. 

1872.  Grote,  Trans.  Am.  Entomological  Soc.,  IV,  lOS,  Jli/pcna. 

1873.  Grote,  Trans.  Am.  Entomological  Soc,  IV,  30i),  liomuhirha. 

(hound  color  a  pale  brown,  varying  to  whitish  in  the  female  and  to 
smoky  in  the  nuile.  Head  and  thorax  concoloroiisj  the  abdomen  :i  little 
paler.  Primaries  with  the  median  space  a^  rich  uniform  brown,  often 
velvety  in  appearance,  contrasting  strongly  v,'ith  tlu^  renniinder  of  the 
wing,  though  less  so  in  tliemale.  Tiie  Uicdian  lines  are  connected  inte- 
riorly; the  transverse  anterior  very  obliipie,  even,  white,  extending  to 
the  internal  vein,  on  which  it  meets  and  joins  the  transverse  posterior 
line.  This  is  also  white,  starts  a  little  outwardly  oblique,  is  then  prom- 
inently exserted  and  then  again  inwardly  oblique  to  the  internal  vein, 
inclosing  thus  between  the  two  lines  a  rhomboidal  patch,  whi(;h  is  the 
median  sjiace,  neither  of  the  median  lines*  reaching  the  inner  nnirgin. 
Transverse  posterior  line  punctiforni,  white,  preceded  by  blackish  spots, 
a  little  sinuate  and  variably  distinct,  more  evident  in  the  male  as  a 
rule.  At  the  apex  is  a  paler  triangle,  inferiorly  nmrgined  by  a  dark 
brown  oblique  shade,  which  is  frecpienrly  broken  into  tiireeoval  blotches, 
and  this  shade  nearly  meets  the  outv/ard  bulge  of  the  nuMlian  space. 
A  slender,  pale,  terminal  line.     The  pah'r  shade  oi  the  wing  includes 


96 


miLLETIN    ■»«,   HMTKD    STATES    NATIONAL    Ml'SF.UM. 


sill  tlir  basiil  spiK'O,  contiinKMl  h.'low  vein  1  to  meet  the  muiiic  Hlimh' from 
tlicoutt'i  portions  of  tiic  winj;-,  where  it  (larken.s  toward  tU«'  ol)li(|ii«' 
apical  i)at('h.  Tiie  orhicnhir  is  not  nnirked  in  any  of  the  speeinu'iiH 
now  beloH'  me,  Init  the  renitbrni  is  indicated  in  some  by  a  few  raised 
bhiek  scales,  tbrmiii}?  a  more  or  less  evident  Innule.  Secondaries  smoky 
pay  to  lirown,  darker  in  the  male,  the  secondaries  with  a  Jisnally  evi 
dentdiscal  Inmde  and  an  occasionally  marked  median  line. 

lOxpaiise  of  wind's,  L';;  to  27  mm.--^(>.1>(l  to  l.(M»  inches. 

llAiMTAT. -Canada  to  District  (dCoIuiebia;  iMinnesota;   Iowa;   Dis 
trict  of  Columbia  in  -Inne. 

This  is  a  v<'ry  ])retty,  very  distinct,  and  not  very  common  species, 
which  is  recofiiiizable  atonce  by  thepecnliarshapeof  the  median  space, 
inwardly  marked  by  the  united  median  lines, 

111  liie  male  the  paler  shade  has  just  a  feeble  violet  tinj-iiii;-. 


1 

f 

i 

-  f^-is— 

Bomolocha  baltimoralls,  Gneiu'-e. 

isr.l.  (iiioii(''t',  Species  (iciicral,  Doltoides,  31,  Uiipena.  ' 

IH.')!!.  Walker,  Cat.  Hrit.  Miis.,  lli'terocera,  XVI,  31,  Htipena. 
1S7().  h'obinsoii,  Ann.  L.vc.  Nat.  Hist.,  N.  Y.,  IX,  81(1,  Ihiiihid. 
W2.  Oioti',  Tians.  Am.  KntoinoloKi'al  Soc,  IV,  102,  Hiiptiia. 
ISTIJ.  Groto,  Trans.  Am.  HntonioloKical  Soc.  IV,  IJOi),  Homoloma. 
IH1'.\.  (iioto,  C'ana<lian  Kiitonioloj^ist,  V,  l.'2(!,  liomoUuha. 
1882.  Packard,  I'apilio.  II,  isl,  larva. 

hcniipiahn,  Walker. 
18,-)'),  Walker.  Cat.  Hnt.  Mii.s.,  iletoroceriv,  XVI.  :5L>,  lltipem. 
1870.  Iiohiuson,  Aim.  Lye.  Nat.  Hist.,  N.  V..  I\,  HIO,  pr.  .syn. 
1873.  Grote,  Canadian  Eut<)nn)l()>;ist,  V,  226,  ju.  syn. 

Iiiciiiionii,  Zeller. 
1872.  Zcller,  Veili.  k.  k.  Zol.  Hot.  (ies.,  X\II,  1G4,  j.l.  ii,  lifj;.  8,  Hmwutt. 
187H.  Grote,  Canadian  KntomoloK'^t,  V,  22(5,  pr.  syn. 

Ground  <()lor  brown,  varying  in  sliade.  Mead  brown,  with  gray 
scales  intermixed,  the  latter  sometimes  i)r«'domiiiating.  Tliorax  with 
the  collar  brown,  gray  tipped,  dorsum  brown  anteriorly,  posteriorly 
gray;  sometimes  tln^  entire  thorax  gray,  and  sometimes  entirely  brown 
with  a  gray  admixture.  Abdomen  fuscous.  I'rimaries  with  the  median 
space  dark  brown  to  blackish,  this  shade  extending  through  the  basal 
space  and  obs(;uriiig  the  transvei\se  anterior  line,  which  is  I'aintly 
marked  (»ii  the  costa.  The  inferior  portion  of  basal  si)ace  is  more  or 
less  white  powdered,  this  pale  shading  extending  beneath  vein  1  and 
connecting  with  the  similar  shading  beyond  the  transverse  posterior 
line.  The  transverse  anterior  line  extends  api)arently  from  the  costa 
at  the  extreme  base  of  the  wing  obli(|ueIy  outward  to  the  subniedian 
vein  at  one  fifth  of  its  distance  from  base,  then  bends  backward  and 
downward  to  the  margin,  very  feebly  marked  below  the  vein.  As  a 
matter  of  fact,  the  true  transverse  anterior  line  is  superiorly  obsolete 
or  only  traceable,  and  a  longitudinal  line  joining  it  below  the  cell  gives 
afaLse  impression,  which  is  conveniently  utilized  for  descri})tive  pur- 
po.ses.    The  transverse  posterior  line  is  black,^  followed  by  a  white  line, 


A    ItKVlSlON    OF   THE    DEI/roiD    MOTIIW — SMITH. 


1)7 


,11 
1 1 


(I  this  ill  fiirii  by  a  fiiiiitcr  yj-llnw  lirowii  liiu'.  Kioin  ilir  costu  it  is 
iitwanlly  <>l>li(iin>  witli  a  maikcd  inward  ciirviii;;-  lovriii  ."»,  tlicii  iH'iuly 
viiai},Mit  f(t  vj'iii  <;,  Inniiin-aiiohi  use  spur  aihl  -;i<':illy  .)hli(|iir  iiiwaidly, 
iiiK'ciuallv  iiiaikt'd  on  tiic  veins,  and  rcarliin;--  tlif  iniu-r  niar;iiii  cloao  t<i 
ilio  transvorsc  anterior  line  in  tlie  teiiialc,  but  a  little  more  remote  IVoiii 
II  in  the  male.  Siii)teriiiiiiai  line  piinctitbrin,  eonsistiii^  of  idaek  and 
white  dots  and  scales,  sometimes  tormin«-  a  suheoiitinuons  line,  hut 
more  usually  entirely  obsolete.  A  very  prominent  dilliise  idark  streak 
extends  from  the  apex  inwardly  nearly  t(»  th  outward  angulation  of 
I  lie  transverse  posterior  line.  A  series  of  small,  Idaek  lerminal  luiiiiles. 
Tlie  median  spaee  is  sometimes  evenly  eidored,  brown,  varyin;;  almost  Ut 
lilaekisli,  sometimes  darkest  interiorly,  and  with  a  more  rosy  sullusiou 
loward  the  eosta.  ( )rbieular,  a  small  round  «lot  (d'  raised  s<-ales.  Iieui- 
lorni,  a  sleiuler  blaek  liinule.  also  of  ele'iitt'd  scaU's,  These  markings 
are  variably  e\  ideiit,  most  promiiu'iit,  of  course,  in  the  palei  iiecimens, 
and  apparently  obsolete  in  the  darker.  Secondaries  even,  smoky  fus- 
cous, varying-  in  tint.  IJeneath,  sm(d<y  jiiiiy  to  fuscous,  with  a  v  ariably 
evident  common  outer  line,  ami  on  secondi.iies  a  discal  spot  or  luniile. 

I'jxpanse,  «d' wind's,  IT)  to  .'}")  miii.  =  I  to  1.40  inches. 

llAJUTAT. — Nova  Scotia  to  IMstrict  ol  C<duinbia;  west  to  the  Central 
States:  . I  line  to  Aujiust. 

This  is  not  an  uncommon  s])ecies,  ami  otters  a  number  of  distinctive 
features.  The  forewings  are  narrower  and  more  pointeil  than  in  any 
other;  the  outer  inarj;iii  is  very  oblitpu',  only  a  little  I'ouiided,  ami  not 
at  all  produced  medially  or  (ixcavated  bch)w  tlu^  apex,  while  the  frinj^cs 
are  feebly  scalloped.  The  <'ontrasts  between  the  ilark  median  and 
[laler  siirroundinj;'  spaces  are  variably  maiUed,  from  white  to  ^ray, 
brown, the  darker  specimens  bein;;'  males,  as  a  rule.  A  variable-  feature 
is  the  distance  between  the  nnnliau  lines  on  the  inner  mar,i;iiKaiHl  as  a 
rule  the  transverse  posterior  line  is  much  the  most  distinct,  crossing; 
the  space  below  vein  J. 

Guenee  described  from  a  sinj>le  female  in  his  own  collection,  and 
Walker's  type  of  />'.  I»  iiit/Holis  is  also  a  female.  Zeller's  type  of  li.  laci- 
niosu  was  a  full-marked  dark  male. 


i8r.il. 
1870. 
1872. 
187:!. 
187:5. 

1872. 
1873. 

1881. 
I8!»3. 

7S0: 


Bomolocha  bijiigalis,  W'alUnr. 

Walkor,  (Jiil.  Hin.  Mils.,  Ilt'tcroicra,  XNI,  :>-',  Ilnpeiui. 

liobinson,  Ami.  Lye.  Nat.  Mist.,  X.  Y.,  IX.  :!11,  Ihjpnui. 

Gioto,  Tr.iiis.  Am.  Kiitoiiiolo-iiiral  Sue,  IV,  KW,  Uijinna. 

(Slot*!,  TiiiM8.  Am.   Kntomoloiiii-al  Soc,  1\',  :!00.  i»I.  i,  li.u.  tKi,  lUmolocha. 

Orittc,  Canadian  Kntouioloj^ist,  V,  2l'ti,  Houioloclui. 

2)aUiaUs,  Zeller. 

Zeller,  Vorh.  k.  k.  Zool.-Bot.  G<'s.,  XXII,  IGC.,  pi.  ii,  (ig.  0,  Hiiiiuki. 

(Jroto,  Canadian  Hntomolojiist,  V,  2l'(i,  pr.  syii. 

frcUtlix,  (Jn.to. 

(Jroto,  C^anadian  Kntomolof^ist,  XIII.  i:{;!.  nomolochii. 

Smitli,  Hnll.  I).  S.  Nat.  Mum.,  It,  :W1,  pr.  syn. 

l>_Xo.  48 7 


m 


'  •m,s  ,y^«k.' '  *",' '';  'i.fi"*w;.-*8V- 


98 


lilLLETlN    IS,   UNITED    STATES   NATIONAL    MUSEUM. 


(rrouiid  color  brown.     Iloiul  aiul  thortix  coiicoloious,  abdomcii  more 
i'iis(;oiis.     Primaries  witli  tl.e  median  si)aee  brown,  tlie  surroundinj;  iim! 
mariiinal  si-aces  wliitisli  to  i»ale  brown,  often  with  a  blnisli  or  violt  i 
shading.     Transverse  anterior  line  transformed  into  a  curved  white 
line  from  base  to  th.e  internal  vein,  alon^'  wliich   it  is  continnetl  tf)  the 
transverse  i)osteri()r  line,  ieavinj^'  all   below  this  line  pale,  to  Join  tlic 
paie  shade  beyond  the  transverse  posterior  line.    Transverse  posterior 
line  black,  followed  by  a  white  line,  ihese  lines  lost  in  strongly  con 
trastinj;'  specimens;  iiprijuht  or  nearly  so,  with  a  usually  a<'.ute,  rai;'l,\ 
obtuse,  outward  tooth  over  the  nu'dian  vein,  and  sometimes  a.  more  oi 
less  marked,  never  strong',  sinuatiou  thence  t;>  the  nniryin.     Subter 
minal  line  punctilbrni,  a  little  sinuate,  coniposed  of  white  scales  pre 
ceded  by  i)lackish,  somewhat  indelinito  spots,  and  beyond  this  the  wim; 
is  a.uain  somewhat  washed  with  brown  to  the  niarji'in,  darkeninj^  to  a 
more  or  less  ])rominent  ol)li(|ue  rtubapical  streak  or  mark,  the  ajiex  ol 
the  paU'i'  p(»rtioH  of  the  wing,    '^'he  ordinary  spots  are  variably  dehneil 
by  ni)rijiht  black  scales.    (Secondaries  uniforr.i.  smoky  fuscous,    lieneath. 
somewhat  reddish  ji'iay,  jiOwdery,  witha  (H>ninion  faint  extra  median  line, 
within  which  the  priinaries  are  dusky;  secondaries  with  a  <liscal  spot. 

Kxpanse  of  winjjfs,  1*5  to  30  ium.  =  l  to  l.-O  in(;hes. 

IlAiMTAT. — Canada   to    l-'lorida,   to  Texas,  to   Kaston,  Washington. 
Canada  and  New  York  in  June:  Texas  in  July. 

This  is  more  widely  distributed  thau   the  previously  named  sj)ecies 
and  varicH  a  little  in  ground  color  within  the  limits  of  the  same  sex. 
Out  of  over  a  dozen  s[»ecimens  before  ine  noiu'  are  males,  and  I  am 
therefore  unable  to  give  the  .sexual  variation.     There  is  a  distinct  van 
ation,  however,  from  an  almost  white  shading  «^\tra  medially  to  a  fai'i 
violet  and  even  brown  tinge,  all  sorts  of  intermediate  forms  occurring. 
The  ontMard  tooth  of  the  transver.se  posterior  line  also  var^s  some 
what  in  prominence  and  m  the  acuteness  of  its  tip.     It  is  upon  a  rathci 
dark  specimen  with  somewhat  broad  angle  and  altogether  faded,  tiiai 
Mr.  Groti'  based  his  species  />'.  fccialis.     In  the  wing  form  this  speciis 
which  so  nearly  resembles  H.  htdfimorxlis  in  type  of  marking  is  quit.' 
diffei«Mit  fium  ''..     Tlie  primaries  arc  bioad,  the  <'osta  (piite  arched,  flu 
outer  margin  broadly  outcuived  and  only  a  hfthi  oblique;  the  excava 
tion  below  the  ap«^x  bart'ly  marked. 

Bomolocha  sciitellaiis,  (iml.c. 
1S7;>,  (iroif,  C;'M;i(liim  Entoiiioloj-ist,  \\  l'2"),  liomutovha. 

<lronnd  color  brown,  varying  in  shade.  Head  and  fluuax  coucoIcm 
ous,  variably  marked  with  gray  scales.  Abdomen  of  the  same  shad' 
as  the  secondaries,  the  segments  narrowly  pale  ringed,  most  evidentl.v 
so  in  the  males.  Primaries  in  the  females  with  the  basal  and  extr;i 
median  spaces  more  (»r  le.ss  prominently  white  marked;  in  the  nial< 
only  a  little  paler  than  tlu'  median  space,  which  itself  is  not  so  dark 
the  Nubtenuiual  space  more  or  le«H  whitish  powdered,     Trftncv,,is. 


w 


A    KKVISION    OF    TllK    DEI/I'olD    MOTHS — hMITH. 


91) 


aiiterior  line  white  witli  an  outward  black  e(l<;in<;,  a  little  ontcurvod  on 
the  eosta,  stion^ly  outwardly  (»bli(|ne  t(»  the  internal  vein  and  then 
inwardly  to  the  hind  niar.uin.  I'.clow  the  median  vein  the  basal  spare 
IS  paler  and  more  white  po\^der('d  than  in  the  costal  rejiion,  and  below 
the  internal  vein  the  line  is  obscure,  the  pale  shade  thus  invadmj;'  a 
little  the  median  space.  Transverse  posterior  line  black,  out  wardly 
cdji'ed  with  white  and  followed  by  a  va,i;ue  yellowish  brown  line:  out- 
wardly oblitiue,  but  witii  an  inward  curve  tVou!  the  eosta  to  vein  five, 
thus  torminj,'  an  obtuse  tooth,  and  rnniiinji-  thence  a  little  obli(|ue  and 
somewhat  irrejiularly  sinuate  to  the  inner  maij^in,  Subterminal  line 
white,  punctitorm,  preceded  by  more  or  less  obsious  black  spots  somt^ 
times  wantinj--;  preceded  also  on  the  eosta  by  a  dusky  ])atch,  nuist  evi- 
dent in  the  paler  si>ecimcns.  \\)(i\  usually  [taler,  interiorly  marked  by 
an  oblicpie  dark  (;r  blackish  sluule,  usually  divided  into  two  black  spots 
:;:id  occasionally  almost  wantiuf;-,  in  tlu'.  latter  case  the  ai)e.\.  beinj;- 
nearly  concohnous.  A  series  of  terminal  lunules,  son\etimcs  lbi'nnn^>' 
an  ahnost  eoi'.tiiuums  line,  preceded  Dy  variously  obvious  pale  or  white 
lunate  spots.  Ordinary  spots  black,  composed  ot  elevated  scales — a 
small  dot  for  the  orbicula'-.  an  ui)rijiht  line  for  the  reniforin.  Sec- 
ondaries varyin<4  from  i)ale  fuscous  ^vny  to  dark  smoky  brown,  iinmacu- 
hite  except  for  a  broken  black  teriiMual  line;  the  frinjies  cut  with  yel- 
low. I>eneath  ,uray  to  smoky,  pow«leiy,  with  an  extia  median  line  and 
a  discal  lunule,  wnndi  latter  is  usually  ol)S()lete  on  the  luimaries. 

l'jXt)anseof  wings,  27  to.>2  mm,  =  1.10  to  l.-'^O  inches. 

Habitat. — Canada  to  District  of  Columbiai;  westward  to  llritish 
Columbia;  Central  States,  Canada  and  >\!w  York  in  Juiui;  District  of 
(■olumbia  in  Au};ust. 

This  species  dilVcrs  at  once,  from  all  those  previously  described  by 
the  complete  transverse  anterior  line;  but  this  is  yet  very  oblnpie  and 
cspei'ially  in  the  female  tends  to  become  lost  (»n  the  internal  vein,  and 
when  the  pale  shade  partially  invades  the  median  space  l)cl<»w  this 
vein  th',^  resemblance  to  H.  bijiij/d  I  is  Wvonivs  marked.  Thcsexualdilfer- 
ciice  in  this  species  is  stroni;ly  emphasi/,e<l,  tlu-  male  beiiiji'  much 
darker,  sometimes  almost  uniform  in  tint  throuuhoul,  miu-ii  more 
robust,  and  with  mncli  looser,  coarser,  and  loiiiicr  thoracic  clothinj;'. 
Tin;  breast  is  wooly,  tiic  vestitiire  thin  but  dense,  loose,  and  diverjment, 
forininj'  an  incomplete  tuftinji' at  the  base  of  the  abdomen.  It  is  possi- 
ble that  with  IVesh  sia'cimens  at  hand  we  may  lind  at  this  point  a 
secondary  sexual  structure;  but  my  material  is  neither  sullicient  in 
amount  nor  satisfactory  in  ([uality  to  enable  me  to  make  <Mit  with  cer- 
tainty what  I  can  only  suspect.  In  wirij;'  form  the  species  is  somewhat 
iate>inediate  between  B.  haUimorHiix  and  II.  hijiK/tdis.  The  eosta  is 
scarcely  arched,  the  apex  is  pointed,  the  outer  inary:in  even,  obli(|ue,  a 
little  rounded  only.  In  the  male  the  i>rimaries  lire  wider  than  in  the 
'emale. 


100 


lULLKTIN     18,   rXITHI)    STATES    NATIONAL    MUSEUM. 


Tlic  species  seems  not  rare  in  the  northern  and  northwestern  part  <»i 


its  range. 


Bomolocha  abalinealis,  Walker. 


185!).  Walker,  Cut.  Hrit.  .Mns.,  Heterocera,  XVI,  31,  Hypena. 
1871'.  (Jroto.  Trans.  Am.  Entomological  Soc,  IV.,  102,  flypena. 
187:5.  (iroto,  Canailian  Entoniolojiist,  V,  22(5,  liomolocha. 
18!)1.  Dyar,  Canadian  Entomologist,  X.\III,  l.">7,  larva. 

Ground  color  a  rich  daric  brown,  varying  to  smoky.     Head  and  thorax 
concoiorous.     Abdomen  fuscous;  the  edges  of  the  segments  feebly  i)ali' 
ringed.    Tiimaries  ([uite  even  in  color,  the  prominent  white  lines  relie\ 
ing  the  uniformity.     Transverse  anterior  line  even,  slender,  white,  witli 
two  outward  angulations.     A  white  line  from  base  to  the  transverse 
anterior  line  at  its  middle,  below  Aviiich  the  basal  space  is  white  pow 
dered.    In  the  male  this  is  all  obscure,  and  sometimes  quite  lost.    Trans 
verse  ]»osterior  line  double,  white,  the  intervening  si>ace  quite  broad 
and  of  the  ground  color,  in  course  a  little  irregular,  but  with  a  great 
central  outcurve  or  bulging,  much  widening  the  median  space.     Sub 
terminal  line  white,  inwardly  oblique  until  it  reaches  near  the  trans 
verse  i)osterior  line,  with  which  it  runs  rather  closely  parallel  for  the 
remainder  of  its  course  and  with  the  outer  line  of  which  it  is  connected 
by  white  lines  on  the  veins,  cutting  the  subterminal  space  into  brown 
spots,   the  largest  of  which  are  on  the  costa  and  internal  margins. 
Ai)ex  i>ale,  <»fteu  white,  interiorly  i:  U'ked  by  a  more  or  less  evident 
brown  or  black  obliciue  sliade,  below  which  the  terminal  space  is  often 
more  or  less  white,  gray,  or  bluish  marked.     A  series  of  brown  terminal 
luuiiles,  oeyond  which  is  a  pale  line  at  the  base  of  the  fringes,  which 
latter  are  cut  with  yellowish.     Ordinary  s])ots  black,  small,  marked  b\ 
raised  scales,  as  usual.     Secondi'iies  uniformly  fuscous  orsm«diy,  witii 
a  darker  terminal  line.     Fringes  with  a  yellow  line  at  base,  a  blackish 
interline,  and  wliitish  tipped.     Beneath  reddish  gray,  powdery,  with  ii 
common  outer  line  within  which  the  primaries  are  darker;  secondaries 
with  a  <liscal  lunule. 

K.\l>anse  of  wings,  LT)  to  32  mm.=l  to  1.30  inches. 

llAiMTAT.— Canada  to  Middle  and  Central  States,  June  to  August. 

This  is  an  easily  recfognized  s])ecies.  The  contrasling  narrow  whiti 
line,  tlu^  transverse  posterior  so  strongly  curved,  and  the  cutting  ot 
the  subterminal  space  are  characteristic  of  the  species.  The  male  is 
much  the  larger  and  more  robust,  the  ditlerence  m  all  resi)ects(piite  a- 
marked  as  in  />,  scufellaris;  but  there  is  less  ditterence  in  theornauieii 
tation.  While  the  male  is  darker  and  more  sordid  as  a  whole,  the  whitr 
rather  dirty,  yet  there  is  no  greater  ditference  or  lack  of  contrast.  Tin 
wing  form  is  most  like  that  of  /.'.  mannlis,  the  female  rather  broadei 
and  more  obtuse,  the  male  with  somewhat  more  pointed  apices  am. 
more  oblicpie  outer  margin  of  [)rimaries.  The  s]>ecies  is  not  a  rare  on- 
and  is  even  locally  common. 


A    REVISION    OF    THK    DELTOID    MuTHS — 8MITH, 


101 


Bomolocha  deceptalis,  Walker. 

1851).  Walker,  Cat.  Miit.  Miis.,  Hetfiooeiii,  WF.  ;{(),  Htjpenn. 
1872.  Grote,  Trans.  Am.  Entoinoloj^ical  Soc.  IV,  1(U,  lljunua. 

1874.  Orote,  Hull.  Hurt.  Soc.  Nat.  Sci.,  II,  r.l,  Mucrhnjuna. 
jteranijulaUH,  1  larvoj'. 

1875.  Harvey,  Hull.  Huft'.  Soc.  Nat.  Sci.,  II,  28:5,  Jiomohxha. 
1893.  Smitli,  Hull.  11.  S.  Nat.  .Mas.,  41.  •S'SA^Ii.  damiiosaHs. 
1893,  Butler,  Eiit()inoI<)<j;ist,  XWl,  •AVI.  ]n\  svu. 

(Trouiid  color  brown:  In  tlio  fennile  a  ratlicr  bri.nlit  n-ddisli  <jray 
brown;  in  tlic  nnilc  n  very  dark  smoky  fiiscon.s  brown.  Head  and 
fhorax  concolorons  with  the  primaries,  abcbiuMMi  with  tlie  secondaries. 
Primaries  in  both  sexes  a  little  paler  powdeied  in  the  basal  si)a('e  and 
again  beyond  the  transverse  posterior  line,  but  while  in  the  female 
this  powdering  is  quite  dense  and  makes  a  ligl.t  lylnish  gray  shade,  in 
the  male  it  is  sparse  and  ai)pears  as  a  thin  bluish  wash  over  the  fus- 
cous or  smoky  brown  base.  Transverse  anterior  line  even.  i)ale,  yellow- 
i.sh,  with  brown  detining  lines,  a  little  outwardly  bent  on  tlie  eosta, 
straight  or  a  little  obliciue  below,  again  inwardly  bent  on  the  internal 
vein.  Transverse  posterior  line  even,  i)ale,  gray  or  whitish,  preceded 
by  a  brown  shade  line,  almost  rigid,  a  little  oblique  .and  a  \ery  little 
outwardly  bent  on  tlie  n^edian  vein,  this  angle  sometimes  disai)pearing 
completel3^  Subterminal  line  iiale,  sinuate,  i-arely  continuous,  ])re- 
ceded  by  black  S])ots,  which  occasionally  form  a  siU)coiitinuous  shading. 
Apex  pale,  below  whieii  there  is  usually  an  obliipie  shade,  nevei'i»romi- 
neut,  and  often  hardly  distinguishable  from  the  remainder  of  the  termi- 
nal space  in  which  the  ground  color  prevails,  though  more  or  less 
modified  or  lightened  by  white  anil  bluish  scales.  A  contiiuous  brown 
terminal  line,  followed  by  a  yellow  line  at  the  base  of  the  tVinges. 
Ordinary  spots  small,  marked  by  upright  black  scales  as  usual,  scarcely 
prominent.  Se«'ondaries  grayish  fuscous  in  the  female,  smoky  or  black- 
ish in  the  male,  immaculate  except  for  a  brown  terminal  line,  which  is 
followed  by  a  yellow  line  at  the  base  of  fringes.  Beneath,  gray  in  the 
female,  smoky  fuscous  in  tlie  male,  immaculate,  save  that  the  sub- 
terminal  line  of  the  primaries  is  incom])letely  reproduced. 

Expanse  (<f  wings,  AO  to  o~)  i>im.      l.L'O  to  1.  !(►  niches. 

IlAHiTAT. — Canada  to  Virginia,  to  Central  States;  New  York  in 
July. 

This  is  a  common  species  and  readily  recognizable  in  both  sexes  by 
the  very  even,  jmle  median  lines,  the  outer  nearly  ligid  or  with  only  a 
feeble  angulation  on  the  me<lian  vein.  Dr.  Har\ey  has  compared  the 
species  to  Paralblia  hisU-iaritt  in  appearance,  and  the  comparison  is 
not  a  bad  one  for  the  male,  which  is  very  much  more  robust  and  dark(^r 
than  the  female,  bec<miing  almost  blackish  in  some  cases.  The  slighter 
body  and  paler  cohns  make  the  i)rimaries  of  the  female  seem  more 
frail,  and  this  is  emphasized  by  the  somewhat  depressed  costa  in  the 
male. 


w 


1:  .•^•% 


102  HITM-KTIN    48,  UNITED    STATES    NATIONAL    MUSEUM. 

Ill  my  catalojino   I   had  icfened  B.  pcmiujuUtliH  to   />.  ilahiiiosaJis, 
Wsilker,  and  sugyostod  tlioir  identity  with  />'.  (leccptaiis,  without  rt'co^ 
iiiziiig  tlic  fact  that  the  diltereiices  were  sexual.    Mr.  Uutler  afterwards 
disi)iited  my  references  to  />'.  damiiosalis,  and  Judging  from  Wallun's  des 
criptiim  he  is  correct,    lie  also  suggested  the  sexuiil  relation  of  />'.  prran 
iluhdiH  to  //.  ((cceptalis,  and  in  this  also  he  is  right.     In   the  P>ritisli 
Museum  the  specimens  were  mixed,  and   1  must  have  taken  as  type 
si)ecin)en  of  Walker's  7>.  dmnnomhs  one  not  entitled  to  rank  as  such. 
I  cau  uot  explain  my  error  in  any  other  way. 

Bomolocha  madefactalis,  (iiieiK'e, 

ISol.  (tihmu''o,  Spticios  (!«Mi«r;il,  Dcltoidos,  ;?.">,  Ili/iieiiu. 
iJSoit.  Wiilkcr,  (at.  I'.iit.  Miis.,  Hetcroccia.  XV,  ^^'^,  lli/pciia. 

1872.  (Uotc,  Triiiis.  Am.  Hiitoniological  Soc,  IV.  WA,  Ihjpena- 
187H.  (Jrotf.  ranadiaii  KntoinologiBt,  V,  22(),  liomolocho. 

achalinaliH,  Zellor. 
1871.'.  Zeller,  Verb.,  k.  k.  Zoo),  liot.  (i.-s.,  X.XIl.  IfiS.  IM.  II,  li^  .7,  Ihipevn. 

1873.  (Jrote,  Canadian  Kntoinolo<;ist,  V,  'J-'il,  ]>v.  syii. 
1881'.  <intt<',  in  (lii'ck  List;  a  distinct  spocics. 

thDinioxaUn,  Walker. 
18.")!>.  Walker,  (.'at.  Krit.  Mns.,  Meteroeera.  XVI,  'My,  Hjipena. 
im^.  Smith,  Hull.  U.  S.  \at    -Mns.,  44.  3!t3.  liomolocha. 

(•aduciilis,  Walker. 
isr>!t.  Walker,  Cat.  lirit.  Mns..  Heterocera,  XVI,  ;i."),  Ihjpinu. 

profcitii.  (iretc. 
1872.  (irote,  Trans.  Am.  Kntoniological  Soc.  IV,  104.  Ilijpena. 
187:'..  (ir<tt(\  Hnll.  Hntl.  Soc.  Nat.  Sci.,  I,  80,  Mitahypvun. 
im:\.  Smitli.  Uiill.  r.  S.  \at.  Mns.,  41,  S0:{,  -^  caihicalis. 

(Iround  color  deep  chestnut  brown,  varying  to  smoky  or  blackish  in 
the  male.     Head  and  thorax  concolorous  with  tin-  paler  shade  of  the 
primaries;  abdomen  like  secondaries.    Primaries  with  the  space  beyond 
the  transverse  ])osterior  line  bluish  gray  oi'  violet  in  the  female,  very 
feebly  violet  tinged  only  in  the  male.     Transver.se  anterior  line  feebl.\ 
marked,  single.  (Uitwardly  obli(pie,  with  two  oiitcurves,  that  below  the 
median  vein  best  marked:  often  entirely  obsolete  in  the  male,  mon 
rarely  in  tlH>  female.     Tiansverse  i)osterior  line  slender,  ]»iile,  princi 
])ally  deiiiied  by  the  ditterence  in  shade  between  themcdi'an  and  siib 
terminal  spaces,  its  course  upright,  or  nearly  so  as  a  whole,  with  a  little 
outward  angulation  over  the  median  vein,  and  another  in  the  sub 
median    intersi)ace.      Subterminal  line  pale,  vague,  broken,  sinuate 
sometimes  marked  by  dark  i)receding  black  dots,  but  nuu-e  usually  In 
a  vague  iiulcHnite'  shade.     Ajtex  moreor  less  pale  marked,  below  whieli 
is  ;iii  obli<|ue  darker  shade  more  or  less  obvions.  l)nt  never  promiiu^i' 
and  sometimes  entirely  wanting.     A  series  of  small  terminal  (h)ts  whicl! 
are  often  wanting,  or  in  the  male  not  visible.     Through  the  outer  pov 
tion  of  the  median  si)aee  it  darkens  somewhat  to  the  transverse  poste 
rim*  line,   forming   a   sort  of    median   shade-band.      Ordinary   si)ot 
indicated  by  black  scales  as  usual.     Secondaries  luscons  gray  brown 


A    REVISION    OF    TITH    DKL'J'OID    MOTHS — SMITH. 


lo;^ 


to  smoky  black;  in  the  feaiale  often  with  a  vaj-uc  discal  hiiinhi,  in  the 
nuUe  ininiaciilate.  »*>en('ath,  ashen  to  smoky,  witli  a  more  or  less 
marked  oat^ir  line  and  «lis(!ai  Inniih'  on  all  winjrs. 

Expanse  of  \vin<>s,  L'l  to;iL*  mm. =<».!».">  to  l.;{(>  inches. 

Habitat.— Canada  to  Texas;  Central  States;  .South  Dakota;  Dela- 
ware in  .June.tJ 

Of  the  specimens  before  me  from  the  United  States  National  Museum, 
one  is  marked  No.  2,S4i,  Sept.  0th, '82,  and  this  is  an  undersized  female, 
expamlinj;  24  mm.,  or  less  than  an  inch.  Few  specimens  expand  less 
than  28  mm.,  and  .U)  mm.  is  about  a  fair  averaj>c expanse.  This  expla- 
nation is  made  in  view  of  the  fact  that  /.'.  sonlidnht  resembles  this 
species  in  the  female  so  nearly  that  errors  are  possible,  and  si/e  is  an 
important  factor  in  distinction.  A  second  specimen  from  the  Xational 
Museum  is  inarked  ''Larva  on  Walnnt,  pupated  Aui>.  12,  \S3.  Issued 
April  Ki,  '84."  This  specimen  is  a  full  sized  male.  The  sexual  ditfer- 
ences  in  this  species  are  stronoly  marked,  the  dark,  robust,  broad- 
winyed  male  Ixiarino- little  resemblan(ie  to  the  ligiitcr,  more  frail  female. 
To  Mr.  nutlerbelonjus  the<'reditof  pointinj^'out  this  relationship,  which 
had  not  been  theretofore  suspe<'ted.  We  ha\e  in  the  male,  which  is 
best  known  as  lli/pnio  pm/crt'i,  the  most  robust  of  ()ur  species  and  the 
broadest  winj^ed.     It  is  a  <M)mmon  spe(Mcs  locally. 


Bomolocha  sordidiila,  (iiotc 

1S7'_'.  (Ji'i)to.  'I'rans.  Am.  Iliiloinoloiiic.il  Soc,  ]\\  !():{,  HijiKua. 
lS7*i.  (iiotc,  Check  l^ist  NOctiiid.i',  IT),  /lomoloihti  ^  Hnhjuieiui. 

"Male. — Size  and  color  and  form  of  II.  fomifa.  Sooty  black,  pow 
dered  with  j^ray  scales.  The  ordinary  lines  are  faintly  apparent,  nearly 
|)erpendicular,  bronj^ht  into  relief  by  i»ale  ])owderin<;s,  wave<l  or  nndu- 
late.  Transv«M-se  posterior  line  usually  marked  by  ])ale  scales  oji  costa. 
Several  anteipical  minute  pale  costal  dots.  Frin.ues  interiupted  with 
whitish  <»n  both  winjis,  short.  Secondaries  deep  blackish,  with  discal 
dots  apparent.  JJeneath  |)aler,  dusted  with  pale  scales,  without  mark- 
injt's,  except  terminal  lines  as  on  upper  surface,  and  <liscal  marks." 

The  !ibo\e  original  characiterization  applies  fairly  well,  and  it  need 
(udy  be  added  that  while  some  specimens  become  almost  immaculate, 
with  a  bronze  glistening*' reflection,  others  have  the  transxcrse  posterior 
line  traceable,  and  in  such  cases  it  is  as  in  the  female,  which  has  not 
been  described. 

Fenuile. — (iround  color,  dirty  luteous  brown.  Ilead  and  thorax  con 
colorous,  abdomen  pale  lutoo  fuscous  like  secondaries.  Primaries  with 
the  median  space  a,  little  darker,  a  bluish  j;ray  shade  followinji-  the 
transverse  posterior  line  and  lost  before  reaching  the  subterminalline; 
terminal  space  sometinu's  a  little  paler.  Transverse  anterior  line(piite 
remote  from  base,  enlarging  the  basal  si)ace,  which  is  sometimes  a 
little  lighter  in  shade;  brown,  single,  feebly  marked,  with  two  distinct 
outenrves.    Tiaiisverst?  ])osterior  line   pale,  inwardly  margined   by  a 


ij'm^'T^fTT'.^^f'^^r^.'iF^n-^.'ir.'r 


'^S' 


I., 


]()4  15ULLETIN    18,   UNITED    STATES    NATIONAL    MUSEUM 

darker  sliade  line  wliich  is  iilso  inwardly  dittnso  niid  darkoiis  the  outer 
portion  of  tlie  niodian  space;  as  a  whole  nearly  npri<;ht,  with  woll 
marked  outward  bends  ou  the  median  vein  and  in  the  submedian  intei 
spaee.  Sabtermiind  line  pale,  sinuate,  of  tlie  usual  form,  continuous  or 
nearly  so,  sometimes  marked  by  a  darker  iu'(,'cedins  shade;  but  in  noiK 
of  my  specimens  by  blackish  spots.  Apex  ])ale,  limited  iuforiorly  by 
an  oblique  shade  which  is  scarcely  darker  than  the  ground.  A  series 
of  dusky  terminal  lunnles,  which  are  sometinu's  i)receded  by  a  palei 
shadinji'.  The  ordinary  spots  are  barely  indicated  in  my  specimens  1»\ 
a  few  black,  raised  scales.  Secondaries  uniformly  fuscous.  Heneatli 
paler,  powdery,  nearly  immaculate,  or  with  a  more  or  less  delliUMl 
discal  spot. 

Expanse  of  wings,  24  to  27  mm.  =  O.Oo  to  1.08  inches. 

IIAUITAT. — New  York  to  Texas. 

A  si)e(imeu  in  the  National  Museum,  from  the  Kiley  collection,  is 
marke<l  "Larva  on  Alder,  21,  7,  81." 

The  almost  immaculate  niale  would  hardly  be  associated  with  the 
female  at  first  sight,  and  as  a  matter  of  fact  the  females  are  either 
marked  li.  arhatindlis  or  Ji.  m<((lefitcia\iH  in  eollec^tions,  none  of  them 
having  been  correctly  associated  with  the  oi)posite  sex. 

Tlie  I'esemblance  to  the  female  />.  madefactnJis  is  sufficiently  marked 
to  justify  placing  it  as  a  small,  somewhat  faded  specimen,  and  the  dill'er 
ences  are  really  oidy  comparative.  The  size  is  smaller,  25  mm.  being  the 
average,  the  body  seems  more  than  proportionately  slighter,  and  the 
costa  seems  a  little  more  arched,  the  outer  nuirgin  more  rounded.  In 
color  it  lacks  all  bright  or  rich  shadings  and  has  a  dirty  luteous  tint,  whih' 
the  bright  violet  or  gray  tints  of  the  former  sjjccies  are  replaced  by  a 
sordid  gray  with  a  faint  bluish  tinging,  and  this  even  is  much  reduceil 
or  almost  wanting.  The  transverse  posterior  line  is  decidedly  more 
angulated,  and  the  siibterminal  line  is  more  distinct  and  more  continii 
ous.  With  a  fairly  good  series  at  hand  there  should  be  no  difficulty 
in  distinguishing  the  species;  but  isolated  specimens  may  in  some 
instances  be  doubtful. 

The  species  seems  less  abundant  than  its  ally.  The  ty])e  is  in  the 
Philadelphia  collection,  a  fact  I  was  not  certain  of  in  my  catalogue. 


Bomolocha  umbralis,  Smith. 

1«84.  Smith,  Hull.  Bklii.  Entomolo^rical  Soc,  VII,  J,  Bomolocha, 
(rround  color  dark  chocolate  brown.  Head  aiul  tlnn'ax  concolorous: 
abdonu'u  siiu)ky  or  blackish,  like  the  secon<laries.  Primaries  with  no 
strong  contrasts,  a  bluish  powdering  between  the  median  shade  and 
transverse  ]M)sterior  line,  feebly  relieving  an  otherwise  almost  uniform 
shading.  Transverse  anterior  line  a  somewhat  richer  brown,  single, 
broad,  but  not  contrasting,  with  two  outcurves.  A  little  beyond  the 
middle  of  the  wing  is  a  rigid,  ui)right  i)ale  line,  preceded  by  a  richei 
brown  shading,  beyond  which  the  space  is  feebly  blue  powdered  to  the 


A    REVISION    OF    THK    DELTOID    MOTHS — SMITH. 


105 


tiansverse  posterior  line.  Tlic  latter  is  soiiiewliiit  «lif!use,  its  edges 
irregular,  but  its  course  very  eveu  and  nearly  parallel  with  the  outer 
margin.  Subterinina!  line  fVagmentary,  marked  by  vague  paler  oryel 
lowish  seales.  Apex  iiat  paler.  A  series  of  brown  or  blaeUish  terminal 
lunules.  The  ordinary  spots  are  very  feebly  marked  by  upright  black 
scales.  Se(!ondaries  a  uniform  dark,  smoky  brown,  with  a  faint  admix- 
ture of  carmine.    Ueneath,  uniform  blackish  brown,  without  markings. 

Expanse  of  wings,  27  mm.  =  l.i()  inches. 

11  AHiTAT.— Florida. 

This  species  is  entirely  unbke  all  our  others,  and  resend)les  a  West 
Indian  type.  1  would  not  now  describe  the  speci.s  as  of  our  fauna 
without  more  evid(»nce  as  to  its  range,  but  retain  it  heie  since  it  has 
bcendescribed ;  it  will  probably  lind  morecongenial  allies  when  the  West 
Indian  si)ecies  are  fully  stiulied.  As  compared  with  the  other  speides, 
it  has  the  pointed  i)riniarics  with  the  obli(pie  outer  margins  of  />.  hnlti- 
momlis,  but  the  wings  are  shorter  and  broader.  It  ditfers  from  all 
others  of  our  species,  save  Ji.  iorcnta^  by  tlu'  want  of  a  paler  apical 
space,  and  from  all  by  the  ]jeculiar  upright  median  pale  line,  which  at 
lirst  appears  like  the  transverse  posterior  line. 

The  S])ecimen  uow  belbre  me  is  a  male  and  resembles  the  tyi)e  which 
is  in  the  United  States  National  Museum. 


Bomolocha  toreuta,  (J rote. 

1872.  (irotti,  Trans.  Am.  Entomological  Soc,  IV,  24,  Hypena. 

1873.  Grote,  linll.  MnH'.  Soc.  Nat.  Sci.,  I,  :!8,  Kuh>ip>na. 
intenmliH,  ||  K'obinson. 

1870.  Kobinson,  Ann.  Eye.  Nut.  Hist.,  N.  V.,  IX,  311,  Hupma. 
1892,  Grote,  Trans.  Am.  Eutoniolojfical  Soc,  IV,  24,  pr.  syu. 

(iUtisi(/)ialin,  Zcllcr. 
1872.  Zellor,  Verli.  k.  k.  Zool.  Hot.  Ges.,  XXII,  463,  Hiipnut. 
1875.  (irotc.  Check  Eist  Noctnidie,  4.j,  pr.  syu. 

Ground  color  sooty  (»r  smoky  brown.  Head  and  thorax  concolorous; 
abd<mien  a  little  paler.  Primaries  with  no  color  contrasts,  the  median 
lines  ob.scured,  marked  by  white  scales.  Transverse  anterior  line 
marki'd  oidy  by  whit<^  scales  on  the  costa  and  internal  margin  and 
more  rarely,  also,  on  the  veins — sometimes  quite  obsolete.  Transverse 
posterior  line  trai^eable  tor  most  of  its  sinuate  course  by  white  scales, 
usually  distinct  as  a  white  line  at  its  costal  incei)tion,  and  followed  oil 
the  inner  margin  below  vein  1,  by  a  white  blotch,  which  extends  nearly 
to  the  subterminal  line;  brokcii,  narrow,  sinuate,  sometimes  nearly 
obsolete  and  rarely  subcontinuous.  A  series  of  black,  i»recedcd  by 
white,  terminal  <Iots,  Ordinary  spots  small,  maiked  by  raised  black 
scales.  Secondaries,  smoky  fuscous,  immaculate.  Heneath,  a  rather 
pale,  iK)wdery  gray;  in  the  female  with  areddi.sh  tinge,  with  a  variably 
marked  extra  median  line  and  a  discal  lunule. 

Expanse  of  wings,  2r»  to  2!)  mm.=l  to  1.15  inches. 

Haiutat. — New  York  to  Texas,  to  Kansas;  July. 


li-l 


106  BULbETlN   48,  UNITKD    STATKS    NATIONAL    MUSEUM. 

Tills  species  does  not  se(Mn  to  be  taken  by  tbe  Albany  colleetois, 
bnt  1  b'wc  ii  spee'nien  IVoni  Newbrn-j-,  nearly  halfway  np  the  Hudson. 
Jt  seems  more  common  stmthwanlly  and  is  fairly  well  represeuted  m 
collections. 

The  species  is  so  simply  nnirked  that  it  seems  aa  if  mistake  was 
impossible.  The  whit*^  blotch  on  the  internal  nmr<>in  is  (juite  uui^^«e 
in  the  ^enns  as  re])resented  in  our  fauwa.  There  is  no  difference  in 
macnlation  \)etween  the  sexes,  and  the  dilVerence  in  size  is  not  jireatly 
marked.  The  nnile  is  more  heavily  built,  however,  and  the  vestiture  is 
more  shaggy  above  and  more  woolly  beneath. 

Bomolocha  odictalis,  Walkrr. 

lS,-)!».  WiilUcr,  Cat.  Ihit.  Miis.,  HottMow^ra,  .\VI,  L.'8  Uypcna. 
IHiin.  Siiiitli,  ItiiU.  V.  S.  Nat.  Miih.,  U,  'M\,  Bomolocha. 

9  rvllifcrd,  (irotc. 
1S7S.  (ivotc.  liiill.  15iill.  Soc.  Nat.  8ci.,  I.  S7,  i»l.  II,  lifj-  7.  Me<Ai.H»"a. 
IH'CJ.  Suiitli,  Hull.  r.  S.  Nat.  Mns.,  14,  WA,  \\v.  wyn. 

^lentUjinum,  (irotc. 
1H7;^.  (irotc,  Hull,  HiiH.  Sor.  Nat.  Sci..  I,  87,  Mvfihypena. 

(Ironnd  color  brown,  varying  somewhat  in  shade  from  a  violaceous 
gray  to  light  chocolate  brown.  Uead  and  thorax  concolorous,  abdomen 
a  little  i)aler.  Primaries  with  the  markings  quite  sharply  delined,  mot 
tied  by  numerous  brown  or  blackish  striga-,  which  are  transverse,  short, 
and  rivulons,  not  connected  to  form  continuous  lines.  Transverse 
anterior  lir  ■  yellow'sh, more  or  less  evident  and  more  or  less  nmrkcd 
outwardly  by  a  black  line  or  sliade,  making  one  large  outward  bend  in 
the  submediai!  interspace.  Transverse  ])ostern)r  line  yellowish,  ine 
ceded  by  a  brown  or  black  shade  line,  upright  to  the  nu'dian  vein, 
thence  with  a  litt](^  incurve,  oblicpiely  to  the  inner  nnirgin,  forming 
thus  an  obtuse  angulation  on  the  median  vein.  Subterminal  line  pale, 
mdcfined,  marked  by  white  scales,  sometimes  also  by  blackish  si)ots: 
but  more  usually  by  a  dusky  preceding  shade.  In  course  it  is  sinuate, 
with  a  i)rominent  medial  outcurve.  A  series  of  more  or  less  nnirke<l 
brown  terminal  lunules.  Fringes  a  litth'  waved  or  scalloped.  Ai)ex 
usually  paler,  interiorly  margined  by  a  dark  brown  oblicpie  shade, 
which  merges  into  the  ground  color.  Ordinary  s[)ots  well  marked, 
black.  Orbicular  small,  round;  reniforuj  lunate  or  kidney-shaped.  In 
the  submedian  iiitersi)ace  there  is  a  distinct  tendency  toAvard  a  darkei' 
shade  to  connect  the  median  lines,  which  here  approach  each  other 
closely.  Secondaries  varying  from  fuscous  gray  to  nearly  blackish, 
the  fringes  paler;  sometimes  with  a  faint  «liscal  lunule,  and  ir.ore  rarely 
with  traces  of  transverse  striga*  similar  to  those  on  the  primaries. 
Beneath,  varying  from  luteous  gray  to  smoky,  with  brown  transverse 
striga'  mor(»  or  less  distinct  and  most  obvious  on  secondaries;  a  more 
or  less  marked  outer  line  and  a  discal  lunule,  usually  obsolete  on 
primaries  and  ])rominent  on  the  S(>condaries.  On  the  secondaries  there 
is  often  a  broad,  darker  margin,  and  this  is  sometimes  indicated  on  the 
primaries. 


A    REVISION   OK    THK    DF.LTOIK    MoTlIS — SMITH. 


107 


li;xj):iiiso  <»(■  Winers,  .'{0  to  .'«)  nun.      l.'JO  |(.  \.r,r,  mkIk's. 

H A H1T4T.— Canada;  .New  York  in  Inly;  Noitlnin  ami  Eastern 
States. 

This  is  the  largest  of  onr  RiKMiics  in  expanse  of  winj>s,  thonj^li  not  so 
robnst  as  male  /;.  matlcftictalis,  and  seems  U)  be  conlined  to  a  northern 
lan^e,  none  of  my  specimens  bein«-  from  any  h>eality  mach  Houtii  oi* 
Albany,  wliile  it  seems  to  be  scarcely  (!onnnon  anywhere.  Mr.  (irote, 
in  statin"-  th"  (iiHerenccs  between  Ins  />'.  Icni'ujinoHH  and  /;.  rrllijh'a, 
very  fnlly  detailed  the  dillercnces  between  the  sexes,  for  snch  is  the 
I'clation  these  specjies  bear  to  eiicli  other.  The  male  {hntiflhiosa)  is 
JMrj^er,  somewhat  more  robnst,  and  the  eohu's  are  dnll,  the  contiast 
little  marked. 

The  species  is  peenliar  by  tlie  rivnlons,  In  »vn,  transverse  strij,'a%  and 
by  the  lonj--,  strai<;lit  i)iilpi,  wlneh  scarcely  ditl'er  in  the  sexes.  The 
apices  of  the  primaries  are  nunc  than  nsually  pointed,  an<l  the  onter 
margin  is  nnnsnally  excnvated  below  that  point.  In  all  tliese  (^harsu*- 
ters,  bnt  es]tecially  in  the  lirst  mentioned,  the  specH's  is  like  l/ifpena 
rather  than  liomoloclia,  niul  is  an  inteiinediate  tyjte.  If  others  are 
found  fidly  a«reeinji  with  it  .Mr.  (Irote's  genus  MedJn/pena  may  again 
(;ome  to  be  used. 

Bomolocha  citata,  (Jrotc. 

1872.  Grofp,  Trans.  Am.  Kntoniolojj;icii]  Soc.  I V.  101,  Ilnpeno. 

1S70.  Orofc,  ("hock  List  Noctuiflir.  la.  Unnitilorha. 

ISiCi.  Siiiitli.  itiill.  II.  S.  Nut.  Mils..  1 1,  :;!ll',       //(//><■»«  iiloumlis. 

WM.  i;iitl.w.  Kiiloiiiolo^^rist,  XXVII,  50,  au  ttp.  (list. 

IrilKhrrdlin.  ZcUiM'. 

ISTl'.  Zcllcr,  \'(!rii..  k.  k.  Zool.  Hot.  (ics.,  XXil,  ]il.  ii.  \\<i,.  tl.  Ilin.ttia. 

1882.  Or<)t»s  New  List  i-iipidoptcrii,  1 1,  i»r.  ayn. 

(xronnd  coh)r  rather  i)ale  chocolate  brown,  varyinj*-  in  shade.  Head 
and  tlH)rax  eoncolorous.  Abdomen  more  fuscous  or  smoky;  concolorous 
with  tlie  secondaries.  Primaries  with  a  somewhat  .oblique,  irrej;nlar 
patch  in  the  median  space  darker  brown,  and  an  obli(]ue  shade  from 
apex  extendinji-  inward  to  the  transv<'rse  posterior  Hue  at  aliont  the 
median  vein.  Basal  si)ace  the  lightest  portion  of  the  wing.  Trans- 
verse anterior  line  brown,  slender,  not  ])rominent,  forming  a  long  out- 
ward angle  in  the  siibmedian  inters])ace.  An  obli«iiie  line  of  raised 
black  scales  runs  nearly  iiarallel  and  only  a  little  within  this  line,  so  far 
as  it  extends  outwardly,  but  continues  in  the  same  course  to  the  inter- 
nal vein,  where  it  joins  the  ])ale.  prominent  line.  l>etween  this  black 
line  and  the  median  line  the  dark  central  i>ortioii  ot  the  wing  is  bounded. 
Median  line  pale,  dark  margined  inwardly,  outwardly  obli(iue  to  vein  .'5, 
with  a  small  anj;le  ou  the  cell,  then  inwardly  oblicpie,  with  little  incu''ves 
in  the  intersi>aces.  Ueyond  this  line  a  bluish  gray  shade  suffuses  the 
space  to  the  subterniinal  line,  cut  only  by  tiie  obli(iue  dark  shade  from 
below  ajH^x.  Transverse  jiosterior  line  dusky,  followed  by  a  ])aler-shade 
liue,  even  oi  feebly  liinulated,  somtjwhat  dilated  on  the  costa,  in  general 


108 


IIULLKTIN    IN,  I'NITKI*    STATES    NATIONAL    MIISKUM. 


conisrwitli !«  vcryevon  ornot  <,n(';if  oitlcmvo.  Tliis  line  isof'ton  obsnii* . 
anil  (lie  paU'  line  is  ii<'('«'|)t<'(l  lis  the  tinr  tninsvcrs*'  postt^ior  Iiih':  wliicli 
it  is  not.  Siibtcrniinal  Imr  \\iiitisli,«l('nticiilal(',  a  little,  iiiarlu'd  by  pic 
ceding  black  scales;  soini'tinies  iiiterniptcd.  Three  wliito  eostal  dots 
before  tlie,  apex,  wliieli  is  wiiitisli  or  pay.  An  interrupted  blaek  ter 
minal  line,  ijreceded  by  a  white  line.  Frmjres  usually  lonji,  brown  at 
base,  with  a  black  interline;  smoky  at  tip.  The  ordinary  sjxits  an 
coinjmsed  of  small  patches  of  elevated  scales.  Secondaries  I'uscous  to 
smoky  or  blackish,  immaculate.  Ueneath  j; ray  to  smoky,  immaculal< 
except  i'or  a  blackish  terminal  line  and  a  white  anteapical  costal  blotcli 
on  i)rinniries,  which  is  Irequently  absent. 

Ivxpaiise  of  win},'s,  17.")  to  1!>  mni.=0.7t>  to  (),7t»  inch. 

IlAniTAT. — New  York  to  Texas;  Florida;  Illinois  in  Aujiust  and 
October:  Texas  in  .luly. 

A  specimen  from  the  United  States  National  Museum  is  marked  "No. 
2r)84,  on  Vrnio  hihiata;  Iss.  March  21),  1S82." 

This  little  species  is  not  (common  in  collections,  thouj-h  probably  not 
rare  in  nature. 

Its  synonymy,  unfortunately,  is  scarcely  settled.  In  my  studies  in 
the  British  Museum  1  touiid  a  specimen  which  I  took  as  the  type  ot 
Jlt/jH'iia  i<l<vits(tli\,\\n\\n'\\,:\\u\  which  1  considered  the  same  as  ll.citfitn, 
Grote,  and  so  referred  it  in  my  catalof^ne,  Mr.  IJiitler  writes,  latei'. 
that  this  is  a  mistake,  and  that  Walker's  species  is  not  even  a  Hypena. 
The  description  somewhat  bears  out  Mr.  IJutler's  statement,  and  I  have 
apparently  made  some  mistake,  though  how  I  «!an  not  conceive.  I 
can  hardly  believe  that  1  would  have  failed  to  reco^ni/e  this  s])ecies, 
however  poor.  On  the  other  hand,  Mr.  Butler  sump'sts  that  Mr.  (Irote's 
species  is  (luence's  Jh/pena  (woJetalis,  from  ]'>ra/il  (tin.  Delt.,  20).  The 
description  is  fairly  applicable  except  as  to  size,  Ouenee  giving'  25  mm.  for 
the  female,  Avhile  no  specimens  I  have  ever  seen  exceeded  10  mm.  Yet 
Mr.  Ibitlcr  may  prove  to  be  ri<>ht  when  sufficient  material  is  at  hand. 

The  species  is  the  smallest  in  our  fauna,  in  ludicrous  contrast  to  tlu 
only  other  species  Avith  long,  straij^ht  palpi.  The  oblique  line  of  elevated 
scahis  and  the  false,  pale,  transverse  posterior  line  are  characteristic 
featnres,  and  distinj^uish  the  spi^cies.  The  male  is  a  little  more  robust 
than  the  female,  but  I  have  noted  no  other  differences. 

Bomoloclia  aniiulalis,  Orote. 
1870.  Groto,  Clicck  liist  Noctnidii',  45,  Jiomolorha. 
"This  brown  and  light  purple  Texan  species  differs  by  the  sagittate, 
pale,  subterminal  line  becoming  white  at  apices,  and  followed  by  dark 
mar'vs.    A  line  white  line   bordering  inwardly  the  dark  line  on  the 
terminal  margin.     A  dark  diffuse  shade  from  the  disk  crossing  the  sub 
terminal  line  and  extending  upwardly  to  apex.     Transverse  anterior 
line  dentate;  transvese  posterior  line  continuous  and   nearly  even. 
Beneath  th«^  apical  pale  dots  are  prominent.     Beltrage  No.  213,  expanse 
20  mm." 


A    REVISION    OF    THK    DKMOII)    MOTHS — SMITH. 


109 


l>lotcli 


The  type  in  the  Hiitisli  .Miiscuiii  rcinesi'iit.s  ii  siiecies  I  had  not  pre- 
viously seen,  and  is  not  represented  in  iuiy  eolhction  hefoie  me. 

Mr.  Grote  places  it  between  /.'.  (iholinrtilis  and  Ji.  ((vli<(timU.s  {made- 
favtfilis). 

Oemis  LOMANALTBS.  (iruto. 
IWl  (Jrot.',  Itiill.  hiiir.  S..C.  \!it.  Sri.,  I,  i:{. 

Head distiiiet,even  somewhat  proMiinent.  Kyes  huge, naked,  jjlohose, 
prominent.  Front  (piite  nariow,  with  a  pointed  interantcnnal  tntt. 
Ocelli  distinct,  sitinited  haHway  betwt'en  the  base  of  the  antenna-  and 
the  posterior  limit  of  the  head.  Palpi  lono-,  straight  in  the  female,  a 
little  ol»li(pie  in  the  male,e(iualin'i  in  lcn;;th  tlie  head  and  thorax  coni- 
Itined  in  the  former,  and  only  a  little  shortei'  in  tin-  lattei.  Antenna* 
simple  in  l>oth  .sexes,  males  with  small  lateral  ciliations.  Thorax  small, 
abdomen  sli<;ht,cylindrical,  more  conic  in  the  mah',  ernialin';-  (»r  sli-^htly 
exceeding- the  anal  an-;le  of  the  secondaries,  with  snnill  truncate  dorsal 
tufts.  Le<»s  Ion};-,  moderately  stout,  clo.sely  scaled  in  both  .sexes,  with- 
out special  nioditication  in  the  male.  I'linniries  pointed,  the  apex 
acute,  outer  margin  very  obli(|uc  and  oidy  a  little  curved,  eo.sta  a  little 
depressed  centrally. 

This  genus  is  very  doul)tfulIy  distiiu't  from  liomolorlia,  ditlering 
really  only  in  the  wing  form.  The  pali)al  character  relied  on  by  Mr. 
(Jrote  is  not  only  variable,  in  the  specimens,  but  is  actually  paralhded 
in  liomolocha.  Vet  the  insect  does  convey  a  somewhat  distinctive 
impression,  and  I  have  therefon'  retained  the  genus,  the  more  readily 
as  it  seems  to  be  .somewhat  internu'diatc  between  Bomohx-hti  aiul 
Ihipctui.  The  single  species  has  essentially  the  markings  of  />'.  Ueceih 
talis. 

Loniaualtes  ediictalis,  Wullui'. 

is.'.it.  Walker,  (at.  IJrit.  Miis.,  Ifcterof.T.i,  .\VI.  ;i(;,  lli/priiu. 
WXi.  Smith,  r.iill    r.  S.  Niit.  Mils..  II,  :i!lO.  l.omiiiHilhx. 

Iiiluhm,  (ii'oic. 
187S.  (irote,  Hull  \U\t\.  Hoc.  Nal.  Sci..  I,  II,  jd.  1,  li;>s.  lli,  i;!,  /.oiikiikiUvx. 
•     189a.  Smith,  Hull.  l'.  S.  \al.  .Miis.,  1 4,  liilO,  pi.  .syii. 

(Iround  (M)lor  a  ]>('arly  .gray,  with  a  more  or  less  marked  brown  .suf- 
fusion, deei)est  and  most  inark<'d  in  the  mule.  Head  and  thorax  con- 
colorous.  Abdomen  i)aler,  fuscous  giay  or  yellowish,  the  edges  of  the 
segments  narrowly  pale  marked.  Primaries  with  the  space  beyond  the 
transverse  posterior  line  more  or  less  bluish  gray,  interru])ted  by  a  dark 
shade  preceding  the  subterminal  line  and  anotiier  which  extends  along 
the  outer  margin,  leaving  a  pale  apical  sj)ace.  Transverse  anterior  line 
rusty  yellow,  the  e<lges  a  little  darker,  nearly  upright,  but  making  a 
somewhat  abrupt  outward  bend  on  the  internal  vein.  Transverse  pos- 
terior line  yellowish,  with  a  rusty  internal  edging  and  a  following  dusky 
shade  line  which  is  often  obsolete;  in  course  it  is  very  even,  inwardly 
oblique,  with  a  small,  obtuse  outward  bend  on  the  median  vein,  which 
is  sometimes  almost  obsolete.  Subterminal  line  i)ale.  marked  by  a  i>re- 
ceding-  dusky  shade,  somewhat  outcurved  in   the  central  part  of  its 


I 


110         Bri,I.F/nN    IK,   UMTKI)    .S'I'ATKS    NATIONAL    MUSKUM. 

course.  Occiisioiiiilly  Murk  snih's,  nioro  or  less  inasscd  into  loose  spof>. 
also  ;u('C(mU'  the  line  and  liullu'r  drliiu'  it.  Tlic  t»Miniiial  8|>a(r«' darken  > 
beyond  tiiis  line  to  tin*  nnuj^in,  but  leaves  the  apiial  portion  free  and 
pule.  A  brown  terminal  line  tollo\ve<I  by  a  yellowish  line  at  the  basi- 
of  the  frin;;es.  Th(^  ordinary  spots  small  ami  nnirked  by  elevated  black 
scales.  Secondaries  yellowish  fiiseons  to  blackish,  immaculat(M)i-  with 
alninit«'spot,  nsnally  with  a  well  inai'ked  dark  t«'rmi!ial  line.  Heneatii 
fnscons  to  blackish,  witli  a  nior«'  (U'  less  mark«Ml  extia  nu-dian  line  an*l 
discal  spot,  both  ot  which  are  sonu'times  <d)solete. 

I'iXpanse  of  winps,  Ul  to  2(\  mm.  =()..Hri  to  l.Oo  inches. 

Haiutat. — Nova  Scotia  to  \ir};inia;  Minnesota;  (lentral  States; 
New  York  in  May. 

A  specimen  from  the  National  Mnseum,  collection  ('.  V.  ifiley,  is 
nnirked  •'  May  0,  VSl.  on  Alder." 

This  litth'  species  does  not  seem  to  be  common,  but  is  i'asiiy  reco;^ 
ni/ed  by  the  very  even  median  lines  closely  reseniblin;;  in  course  those 
of  iSoiiioJorhd  dercptalitt,  and  by  the  [)ointed  fore  wings. 

Tilt  re  is  little  variation  except  in  the  shade  of  brovvn  over  the  jj^ray 
base  and  tIi(M'onse(|neiit  contrast  of  color.  The  male  is  darker  and 
more  even  in  tint  as  a  rule,  tlitr  bluish  slnnle  dull  and  obscure. 

Oemis  PLATHYPENA,   (Jrote. 

1S7;1  (.roti".  iSidl.  Hull'.  «(>«•.  Nat.  Sci..  I,  iW. 

Head  moderate  in  si/e,  front  very  narrow,  with  a  pointed  tuft.  Kyes 
large,  ])rominent,  globose,  naked.  Ocelli  distiiuit,  situated  (lose  to  tin- 
(romponnd  eye  and  midway  between  the  base  of  the  antenine  and  the 
posterior  angle  of  the  eye.  Tongue  moderate.  Palpi  moderate  in 
length,  decidedly  shorter  and  a  little  oblique  in  the  male;  longer  aiitl 
straight  in  the  female;  the  terminal  Joint  very  short  and  obtuse  in  both 
sexes.  An.(^nna'  long,  extending  beyond  apical  third  of  ])riniaries; 
simple  in  both  sex«>s,  the  male  linely  ciliated  only;  in.serted  v.  .11  for 
ward,  almost  on  the  front.  I'xtdy  moderate  in  the  female,  robust  in  the 
male,  the  thoracic  vestiture  scaly,  a  little  loose  in  both  sexes,  perhaps 
a:  little  more  prominently  so  in  the  male.  Abd(»men  conic,  (cylindrical, 
extending  to  the  anal  angle  of  the  secondaries,  (|uitt!  prominently  tufted 
on  the  dorsum.  Lc^gs  quite  robust,  moderate  in  length,  the  spurs  oi 
the  middle  and  hind  tibia-  not  excessively  long.  Under  side  of  bod,\ 
somewhat  woolly  in  the  male.  Wings  large  as  a  wh<de.  Primaries 
iiarn»w,  apic«'s  re(;tangular  or  a  little  acute,  outer  margin  moderat«'l\ 
rounded,  obli(pn';  inner  margin  sinuate,  the  hind  angle  prominent,  ;i 
little  i)ro(luced,  more  so  in  the  male.  Secondaries  broad, outer  margin 
(piite  evnlently  excavated  below  the  apex  in  the  female,  almost  even  in 
the  male. 

This  genus  dilfers   iVoin  Jii/jxiia  in   the  more  robust  structure,  tlic 
diti'erence  in  bulk  between   the  sexes — the  male  being  larger,  moi' 
robust  and  broader  winged— ia  the  short  palpi  and  iu  the  sinuate  iuui* 


m. 


!l!>- 


A    UKVISION    OK    TIIK    DKi/miD    MOTHS — SMITH. 


Ill 


moK 


niiiiKin  of  priinmies,  wliu;!.   is  iiwurvnl   Ldoi..  aii.l  makes  |>n>iniiinit 
liio  liiiid  ati^lo. 

From  llomolnvlu,  tlio  <.»mmi.s  diners  in  the  (orm  of  tlie  i.rii.iaries  and 
in  the  proportionately  hioad  seei.ndari.'s.  It  is  thus  intermediate  in 
nniiiy  characters  between  linmoiovho  and  /////><  «f»,  while  it  possesses 
rond)inatioiis  peculiar  to  itself  and  siimcient  toantiiorize  it  an  valid. 

Plathypeua  scabia,  Fabiicins. 

17!ti.  I'ftliriciuH,  Kiitoniolojriu  SvHteinnlica,  Siippl.,  jV,  lis,  llyhlmi. 

\^:A.  (JiiuiH'o,  Species  (Jcii'T.il,  Deltoid,  jj,  10,  H,ii„ii,t, 

IK>[\.  VValker.  Cut.  Itiit,    Mmh.,  ll.lri(.c.Ta,  XVI,  ;i|.  Ilinu-iin. 

\X12.  (irotc,  Trans.  Am.  i:nt(iiii(il(i;riial  Sor.,  IN  ,  Kc',  H,)i„iii(. 

1873.  LiiitntM",  Canadian  KiiloinoloKiHt,  V,  HI,  llnimia. 

iHT.\.   (iiotf,  Itilll.  iliiir.  Six'.  \;it.  Sei.,  I,  ;iH.  I'htlln/pviia, 

ISSO.   K'iic.v,  ,\nirri.an  IliitoMMdnjiist,  III,  s,  lliipiiia. 

1«80.  Cotjiiillott,  Canadian  Kntoniuionist,  .Ml,  |;{,  larva. 

1881.  C<)(|nill(4t,  Canadian  KntoniolonJMt,  XHl,  IM,  larvu. 

ervctdlix,  (Jnent'c.  j 

1854.  Oiioni'-n,  Spt'cdeH  (}<Mi()ral,  Dcdtoiilos,  10,  Ihnxini.  ' 

1H5!I.   Walkor,  Cat.  Hrit,.  Mas.,  Hclt;nicorii,  :i.".,  i  an  var.  pr. 

1872.  (Sroto,  Trans.  .\ni.  Kntonwdcmical  Soc.  IV,  lo:.',  Ilmniia. 

1873.  Lintncr,  Canadian  ilntoniolugist,  \',  81,     -^miahni. 
jutliKiliH,  Ilaworth. 

181J.    ilaworth,  Lcpidoptcia  ltritaiini<a,  "MW,  ('raiiihiin, 

is:.'!!.  Styplicns,  lllnstiiilions  JJriti.sli  llntoniolo;'^-,  liaust.,  IV,  11',  Hinwna. 

1854.  GueiK^e,  Species  Oonoral,  Didtoides,  40,  pr.  s.vn. 

1859.  Waiker,  C:it.  Miit.  JIiim.,  Ilutorocera,  XVI,  ai,  pr.  syii. 

cruHsidiin,  Ilawoitli. 
1812.  Hawortli,  Lcpidoiitera  liritannica,  .S3(5,  Ciamhiin. 
18,51.  ( J  noiH'i!.  Species  (JtiitM-al,  DeltoideM,  10,   i  —  11.  vrectoVtit. 
185)>.   Walker,  (at.  Mrit.  Mas.,  Ileteroeera.  XVI,  3.5,  ^U.  trerliilis. 

ohexitViH,  Stephens. 
182!).  Stephens,  lllnstrali.nis  Itritish  Knloniolojjy,  llanst.,  IV.  11,  llypina. 
1859.  Walker,  Cat.  Hrit.  .Mas.,  IIetero<eia,  X\I,  :{.5,  =  - (rcrtullx. 

Hiihnijulin,  (irote. 
1872.  Grote,  Trans.  Am.  Hntoniolij^ieal  Soe.,  1\',  loi',  var.  envluliH. 
18!):?.  Sniitii,  Hnil.  i:.  S.  \;it.  Mns.,  II,  Ititf),  i>r.  syn. 

(hoiiiKl  color  a  dark  i)urplisli  or  smoky  brown.  Head  and  thorax 
coiicoloroiis.  Abdonieii  more  smoky,  like  the  secondaries.  Primaries 
dusky  to  the  transverse  posterior  line,  then  v.Mth  bluish  powderinjis, 
which  scarcel.v  relieve  tlie  somber  tint  in  the  male,  but  are  quite  con- 
trasting in  tJM^  female.  In  the  latter  se.\  the  inferior  half  of  the  median 
space  often  becomes  shadcl  with  yellowish  red-brown,  sometimes  quite 
(VMitiastingly.  Transverse  anterior  line  red  brown,  preceded  by  palt^  in 
the  best  mark«'d  specMinens,  outwardly  bent,  with  three  long  outward 
angulations,  rarely  complete,  and  in  the  male  quite  frcjinently  entirely 
ob.solete.  Transverse  posterior  line  black  or  brown,  outwardly  bent  over 
the  cell  and  almost  rigid  beneath.  The  line  is  marked  through  the  lower 
part  of  its  course  by  eh'vated  scales,  which  are  most  i)rominent  on  the 
inner  nnirgin.  yubterminal  liiu- interrupted,  pale,  i)receded  \,y  black 
spots,  rather  evenly  bisinuate,  often  quite  contrasting  in  the  female,  and 
tt8  inconspicuous  iu  the  male.    A  browu  terminal  Hue,  which  is  rarely 


I"? 


.1    ..''- 


112  BULLETIN    iH,  UNITED    STATES    NATIONAL    MUSEUM. 

interrupted,  ])i('('0(le(l  by  imdelineil  bluish  luuules  in  the  interspaces. 
Ill  the  male  the  apex  Is  blue  powdered,  the  terminal  spaee  else  (piite 
even.     In  the  female  the  apical  pateh  is  more  contrasting,  interiorly 
limited  by  a  blackish  streak,  the  terminal  space  being  irregularly  and 
variably  mottled  with  bluish  brown  and  biack,     ()pi)08ite   the   hind 
aiijile  is  a  longitudinal  black  mark,  which  crosses  the  subterminal  line, 
rsuali.v  a  narrow  black  line  connects  the  median  lines  in  the  subine 
diaii  interspace,  and  another  connects  the  (udinary  spots,  which  are 
much  reduced  and  nsarked  by  black  elevat(!d  scales.    The  basal  apace 
is  also  sometimes  blue  powdered  or  inferiorly  brown.     In  the  male  the 
oi'diiiary  spots  are  sometimes  hardly  evident.     Secondaries  deep  smoky 
brown,  varying  a  little  in  tinge  toward  l»cvr:i  or  bluk.     Beneath,  uni 
loriiily  brown  or  blackish;  the  secondaries  with  a  more  or  less  evident 
discal  si)ot. 

Kxpai'se  of  wiugs,  21  to  34  min.=  1.10  to  l.-'ia  inches. 

Hahitat.— N:wa  Scotia  to  Texas;   east  of  the  Itocky  INIountaiiis. 
June  to  October. 

This  is  our  most  abundant  species,  and  ia  some  respects  a  most  vari 
able  one.     When  the  sexes  are  sei)arated,  however,  the  range  of  varia 
tiou  in  each  is  much  reduced,  and  is  usually  a  ditt'erence  in  the  amount 
of  contrast,  rather  than  in  actual  maculation.     The  si)ecies  is  easily 
recognized  by  the  (diaracters  already  given.    The  subterminal  line  in 
its  course  and  tlie  elevated  scales  marking  it  are  chai'acteristic. 


'  (-. 


Genus  HYPENA,  Schnink. 

180-'.  Sihrank,  I'iiiiiiii  IJoica,  II,  '2,  Ui'.l 

IH.")!.  GiR'iiet',  Species  General,  Deltoidi'S.  '2't. 

18.")7.  Ledcryr,  Noctiiiiien  lMiii»|tu.s,  'Jll. 

IS.-)!).  Walk.T,  Cat.  Mrit.  Mils.,  Lei>.  llcter.icera.  XVI,  2'-'. 

llea<l  moderate  in  size  or  s-nall,  front  narrow,  with  an  unusually  long 
interanteniial  tuft,  sometimes  exceeding  the  ln'ad  by  its  own  leiigtii. 
Eyes  prominent,  globose,  naked.  Ocelli  distinct,  situated  close  to  the 
compound  eye,  at  about  the  middle  of  the  vertex.  I'al])!  long  or  very 
long,  sometimes  exceeding  the  head  by  more  than  the  length  of  the 
head  and  thonix  combined,  similar  in  the  sexes,  directed  straight  for 
ward,  greatly  com[)ressed,  the  upright  vestiture  unusually  long,  even 
on  tin*  terminal  joint.  The  second  Joint  in  some  of  the  species  is  a  little 
arcpiate.  the  concavity  iiiferior.  Anteinue  simple  in  the  female,  slightly 
iliiited  in  the  male,  liody  siight;  thorax  small;  ab'lomen reaching  to 
V  exceeding  the  anal  angle  of  the  secondaries,  \vith  (piite  a  ])romineiit 
dorsal  tuft  at  base,  and  smaller  tuftiiigs  on  3  or  4  other  segments. 
Legs  long  and  slender,  closely  scaled,  not  specially  moditied,  the  usual 
tibial  spurs  long  and  une(iual.  Wings  large,  primaries  long  and  nai 
row,  the  apices  i)ointed,  outer  margin  obliciue  or  obtusely  iuodu(!ed  at 
the  middle,  a  little  excavated  below  the  apex.  Secondaries  proportion 
ately  very  large  and  broad,  the  outer  margin  a  little  excavated  below 
the  apex.    There  is  no  ditfereuce  in  essential  structure  between  tne 


ilK't .   ;« 


A    REVISION    OF    THK    DELTOID    MOTHS — SMITH. 


113 


y  lonji- 

eiif'tli. 

X)  tlu' 

i»r  the 
it  foi- 

<'V«MI 
illittlr 

i«>litl,\ 
liiij;'  tc 

llllUMll 

uients. 

usual 

1(1  Hill 
•tHl  111 

)rti<>n 
below 

MJ  tii»' 


sexes,  save  tliat  Mie  male-  has  the  priiiuiiies  (listinctly  bi()a<ler  and  is 
ahviiys  miieli  more  evenly  colored,  without  contrasting  lines  or  shades. 
The  genus  is  an  easily  distinguished  one  in  our  faunii.  Vhe  <ndy 
other  narrow  winged  genus  we  have  is  I'lidliypciKi,  and  in  that  the  palpi 
are  decidedly  shorter,  obliijue  in  the  male,  while  the  latter  sex  is  also 
very  much  more  robust  and  has  woolly  clothing  beneath.  Finally  the 
wings  have  the  inner  nuirgin  sinuate  and  the  anal  angle  marked  or  a 
little  produced,  while  in  lli/pcna  the  margin  is  even  and  the  angle  obtuse, 
or  at  least  not  at  all  pnnninent. 

All  the  spt^cies  are  inarke<l  l)y  tufts  ofeh'Vated  scales  indicating  the 
ordinary  spots  and  by  an  additional  little  patch  below  the  median  \ein 
an<l  at  about  the  nuddle  of  the  median  space. 
As  thus  restricted  we  have  four  si)ecies  of  Hi/pcna,  one  of  them  new. 
At  the  head  \  i>lace  //.  hniuali,  an  old  friend,  which  dill'ers  from  all  the 
others  by  the  even  outer  margin  <»f  the  primaries,  no  trace  oi  any  angu- 
lation occurring  in  any  specimen,  'i'he  s])ecies  is  fui'tlier  distinguished 
by  having  a  sinuate  transverse  i>osterior  line,  distinctly  outcurved  over 
the  reniform.  in  this  it  agrees  with  I'hdhijpciui  scahra,  but  diliers 
from  all  its  congeners. 

The  transverse  posterior  line,  by  the  bye,  furnishes  an  excee«lingly 
useful  and  reliable  character  for  the  recognition  of  species  in  this 
genus,  being  absolutely  coustant,  ahvays  distinct  in  the  female,  and 
usually  also  in  the  niale. 

H.  motlesta  is  a  new  species,  which  has  been  probably  confused  with 
If.  californlca.  It  is  of  a  <iuiet  color,  powdery,  in  the  male  almost  a 
uniform  pearl  gray,  in  the  fennile  a  little  more  reddish,  with  better 
defined  markings,  the  subterminal  space  with  a  markedly  blue-gray 
tinge,  which  can  scarcely  be  called  contrasting.  The  transverse  pos- 
terior line  is  rigidly  obli(iue,  without  curve,  bend,  <»r  angulation  to  the 
submedian  inter  spine,  where  it  is  inwardly  bent,  forming  a  tooth  on 
the  iuternal  vein. 

H.  cali/ornmds  decidedly  larger,  always  reddish  or  darker  brown,  in 
the  female  with  sharp  contrasts  against  the  yellow  base,  the  pale  colors 
all  yeUowish  and  never  bluish.  T!ie  transverse  posterior  line,  while 
nnu'h  the  same  as  that  of  JI.  tuodcsta  as  a  whole,  is  irregular,  a  little 
denticulated  on  the  veins  and  curved  in  the  interspaces;  while  the 
inward  tooth  on  the  interr.al  vein  is  much  deeper  and  nune  acute  as  a 
iide,  to  which,  iiowever,  there  are  frequent  exceptions.  //.  ilecorata 
nearly  or  quite  equals  11.  mli/oniica  in  size,  but  is  of  a  yet  richer  and 
deeper  brown,  with  little  admixture  of  yellow,  and  the  subterminal 
space  shot  with  bluish;  the  contrasts  in  the  female  being  bright  if  not 
strong.  The  transverse  posterior  liiu'  is  even,  a  very  little  sinuated  to 
the  submedian  interspace  where  it  forms  an  outward  tooth,  followed  by 
one  of  equal  length  inwardly  on  the  internal  vein.  It  thus  dilfers  from 
both  those  pr<'viously  mentioned  by  the  outward  tooth  above  the  inward 

one. 

78(;2— N.».  IS 8 


114  BULLETIN    18,  UNITED    STATES    NATIONAL    MUSEUM. 


The  three  species  hist  iiiimed,  which  are  Iroiii  the  Pacilic  (3oa.st  or 
the  Northwest,  may  be  further  (listinguished  in  that  //.  (Jcvorata  has 
the  palpi  distinctly  shortei-  than  in  the  two  others,  resembling  //. 
hamuli  in  that  respect  and  in  the  less  marked  angulation  of  the  outer 
margin,  which  in  the  male  is  very  slight.  H.  cali/ornica  and  //.  tnodesta 
have  excessively  long  palpi,  proportionately  longest  in  the  latter,  while 
the  outer  margin  is  more  angulated;  also  most  obviously  in  H.  modesta 
and  particularly  in  the  i:iale. 

We  can  follow  the  modifications  of  the  transverse  posterior  line  in 
much  the  same  way.  //.  huiiwli  h.as  it  irregularly  sinuate  and  bent, 
with  an  outcuive  in  the  submedian  interspace  and  an  inwai'd  tooth  on 
the  internal  vein.  //.  (U'cornia  has  the  line  nearly  rigid,  only  a  little 
sinuated,  has  the  outcurve  in  the  interspace  less  marked,  but  the 
inward  angle  distinct.  H.  vaUfornka  has  the  line  more  rigid,  but  with 
small  denticidations  on  the  veins;  the  outcurve  in  the  interspace  has 
disai)peared,  while  the  inward  angle  is  acute  and  Avell  nuirked.  Finally, 
U.  modesta  has  the  line  absolutely  rigid  and  even  to  the  inward  angula- 
tion on  vein  1. 

ANALYSIS    Ob    Till;    SI'llCIKS    <)I'    IIYPKNA. 

Outer  marf^iu  not  anguliitod  at  luiddlo nuMri.i. 

Oiitei-  iiiari;i!i  more  or  less  outwardly  hcnt  at  middle. 

Palpi  not,  excessively  louj;';  transverse  posterior  lino  with  an  outward  bend  in 

the  submedian  interspai^e .dkcokaia. 

Palpi  excessively  lonj;';  transverse  posterior  line  without  an  outward  bend  or 
ciirv(^  in  the  submedian  interspace. 
15ase  of  gnmnd  color  yellow;  subterminal  space  yellow;   si/e  larger, 

CAI.IKOKNICA. 

Base  of  ground  color  gray;  subterminal  siiace  bluish  gray;  size  smaller, 

MODKSTA. 

Hypeua  liumuli,  Harris. 

IK}").  Harris,  Catalogue  Insects  Muasacluisetts,  74,  Crambun. 

IXW.  Hiirris,  IJejit.  Insects  Massachuaetts,  1515,  Ilypenu. 

1S':>'>.  I'itch,  Trans.  N.  Y.  State  Agl.  Soc.  XV,  .">;"),  pi.  i,  iig.  1,  Hiipetia. 

18.')G.  Fitch  1st  and  2nd  l{ei)t.  Insects  N.  V.,  S2:?,  ]>\.  i,  (ig.  1,  llupvtia. 

18(>2.  Hiirris,  Injurious  Insects,  Flint  ed.,  477,  tig.  2:?7,  Ifi/ixina. 

1872.  (iroto,  Trans.  Am.  Kntonirdogical  Soc,  IV,  101,  Hi/iieiia. 

1878.  Lintner,  I'ntomological  (,'ontribucions,  IV,  128,  Iliipena. 
tntiiiddlis,  iioldnson. 

1870.  Robinson,  Ann.  Lye.  Nat.  Hist.,  N.  Y.,  )\,  'M\,  Ifn/KiKi. 
1872.  (irote.  Trans.  Am.  Entomological  Soc.,  IV,  l(tl,  Uijixinu. 
1872.  (irote,  ('anadian  I'-ntonudogist,  IV,  HI,  Ujipetia. 

187;*.  Grote,  Tr:ins.  .\m.  Entomological  Soc,  IV,  80!»,  pi.  i,  iig.  87,  Hfnienn. 
1878.   Lintner,  Entoinoh.giral  Cimtrilmtions,  IV,  128,  \n\  syu. 

timtuinalis,  \\',\\kvY. 
18.")!».   Walker,  Cat.  Brit.  Mus.,  Heterocjera,  XVI,  3.5,  Ifypeiia. 

1871.  (Jrote,  Bull,  MutV.  Soc.  Nat.  Sci.,  11,  52,  pr.  syn. 
var.  olirnreii,  (Jrote. 

187:?.  (irote,  Canadian  Entomologist,  V,  22r),  Htjitena. 
1882.  (irote,  New  List,  44,  pr,  var. 

var.  tillii>iniiicl(itit,  Tepjier. 
1881.    Teppir,  Hull,  Itkln,  Entomological  Soc,  IV,  2,  pi.  r.  Iig.  .">,  Ilmuna. 


18'Ji.  Smith,  List  Lepidoi»tera,  (II, 


\n\  var. 


M. 

ic  ( 'oast  or 
voruta  lias 
inblinj?  H. 
f  tlie  outer 
//.  modes t((. 
itter,  while 
H.  modesta 

nor  line  in 
!  and  bent, 
id  tooth  on 
nly  a  little 
d,  but  the 
d,  but  with 
irspace  has 
I.  Finally, 
ird  angula- 


HUMII.I. 

vviirtl  ))einl  in 

.  . .UKCOKATA, 

tviird  bend  or 
larger, 

CALIFOKNIOA. 

Bniiiller, 

MOUKSTA. 


iipena. 
K'lta. 


7,  nfji>enii 


A   REVISION    OF    THE    DELTOID    ilOTHS — SMITH. 


115 


Hillicna. 


(Jround  color,  a  grayisli  b.owii,  varyi  •{,'  in  tint;  in  tlie  male  with 
blaekish  powderin^js,  in  the  female  more  or  less  suffused  with  reddish. 
Body  of  thej^round  color;  abdomen  more  <>ray.  Primaries  in  tiie  male 
even,  without  contrast,  the  lines  vaguely  traceable  in  most  instances. 
In  the  female  the  uijper  portion  of  the  median  space  is  darker  brown, 
contrasting  with  the  paler  shade  elsewhere  in  the  wing.  This  brown 
shade  usually  extends  less  markedly  to  the  upper  part  of  the  basal 
space,  while  its  outer  inferior  angle  is  very  near  to  the  termination  of 
a  blackish  sid>apical  obliipu'  streak.  In  some  si)ecimens  of  both  sexes 
the  wings  are  transversely  strigate,  the  striga*,  brown,  rivuh)us,  not 
continuous,  in  tlui  females  marked  only  tliroiigh  the  darker  jxtrtions  of 
the  wing.  Transverse  anterior  line  pale,  more  or  less  l)rown  or  dark 
margined,  strongly  toothed  oui.ardlyon  the  median  and  submedian 
veins;  rarely  distinct,  more  often  entirely  obsolete,  es[»ecially  in  the 
male.  Transverse  posterior  line  i>ale  or  whitish,  arising  above  the  reui- 
form  and  abruidly  outcurved  over  this  spot,  as  a  whole  nearly  upright 
below  it,  but  with  an  outward  angle  in  tin;  submedian  intersi)ace  ami 
an  inward  tooth  on  the  internal  vein.  This  line  is  usually  more  evi- 
dent in  the  male.  Subterminal  line  [)unctiform,  consisting  of  black 
dots  followed  by  white  scales,  the  line  very  evenly  parallel  with  the 
outer  margin.  The  line  is  best  marked  in  bright  females ;  it  temls  to  lose 
the  wliite  scales  in  i)ale  specimens,  the  black  dots  alone  remaining,  and 
tends  to  lose  the  black  spots  in  dark  specimens  in  which  the  white  scales 
(iidy  are  obvious.  In  a  few  sond)er  gray  males  even  this  line  is  lost.  A 
series  of  dark  or  bla(;k  terminal  lunules  [ueceded  by  white  scales. 
Orbicular  a  little  round  tuft  of  upright  black  scales.  Reniform  nuirked 
by  two  such  spots.  Beneath  the  median  vein,  about  the  center  of  the 
median  si>aee,  is  another  small,  rouud  tuft  of  elevated  scales.  Second- 
aries an  even  gray  to  fuscous,  with  a  brown  or  darker  t;n'minal  line. 
IJeneath,  more  or  less  pow«lery,  smoky  to  reddish,  the  primaries  darker 
on  the  disk  and  usually  immacidate,  the  secondaries  i)aler,  usually 
with  a  discal  dot  and  a  rather  well-marked  median  dusky  band. 

Expanse  of  wings,  27.5  to  Ji3  mm.      1.10  to  1.3li  inches. 

ILviUTA-T.— Northern  United  States,  from  the  Atlantic  to  the  Paeitic; 
(Janada;  British  Columbia;  southward  to  Alabama.  Colorado  in  Sep- 
tendjcr,  October;  British  Columbia  May, -luly,  September,  October; 
Kansas  in  April;  Dehiware  in  August;  New  York  -July,  September, 
Oct(>ber. 

This  is  at  once  the  most  common  and  widely  distributed  s])ecies  of 
the  genus.  Its  larva'  feeds  on  the  liop-vine  leaf,  and  prol»ably  wher- 
ever that  i)lant  occurs,  there  our  si)ecies  will  also  be  found.  There  is  ji 
considerable  amount  of  variation  in  the  ground  color,  that  of  the  males 
ranging  from  an  even,  sordid  reddish  bnnvu  to  almost  black.  The 
palest  of  the  forms  is  H.nliracea,  (Irote,  the  darkest  is  ILaJhopunetataj 
Pepper,  the  intermediate  and  typical  form  is  //.  fifrmtuwlis,  Walker, 
rho  feuuileof  //.  oUmeea  is  11.  eniuidalis,  (hote.     The  coh)ration  seems 


rl 


•-,  1 ;  ■L,  >j»  ■■:';vv 


116 


JiUl.LKTIN    IS,  UNITED    STATES;    NATIONAL    MUSEUM. 


i 


1 


todepeud  sonicwliiit  upon  locality,  the  palest  specimeiis'  coining  from 
noitlieiu  New  York,  while  the  darkest  forms  are  contitiedto  thel  acilic 

Coast. 

The  structural  features  of  th(!  spe<!ies  have  been  i»reviously  referred 
to  and  need  not  be  again  rehearsed  here. 

Hypeiia  decorata,  Smith. 
ISSI.  Smith.  Mull.  Hklii.  Kiitomolo<fit;iil  Soci.,  Vll,  1,  Hi/paia. 

Ground  color  a  rich  red  brown  with  bluish  gray  relieving  scales. 
Mead  and  thorax  concolorous,  the  latter  sj  eckled  with  blue  scales  in 
the  Ceniale.  Abdomen  like  the  secondaries.  Primaries  quite  mark 
edly  transver.sely  strigate,  many  of  the  striga'  continued  almost 
entirely  across  the  wing.  The  subternnual  space  is  quite  contrast 
ingly  blue  gray  just  beyond  the  transverse  posterior  line;  but  becomes 
of  the  brown  base  before  the  subterminal  line.  Transverse  anterior 
line  pale,  (aitwardly  marked  with  brown,  with  an  acute  outward  tooth 
on  the  nu'dian  vein.  Transverse  [josterior  line  i»ale,  preceded  by  black, 
very  even,  oblicjue,  a  little  sinuated,  with  a  nuirked  outward  bend  in 
the  submcdiaii  intcrspa<'-e  and  a  well-nnirked  inward  tooth  on  the  inter 
iial  vein.  Subterminal  line  punctilbrm,  the  spots  black,  followed  by 
white  scales,  as  a  whole  a  little  sinuate.  A  lunate  blackish  terminal 
line  preceded  by  whitish  scales.  Beneath  the  pale  apex  is  a  distinct 
deep  brown  oblicpie  shade,  extending  nearly  half  way  through  the 
subterminal  space.  Orbicular  a  round  patch  of  elevated  black  scales, 
lienilbrm  a,  lunule  of  elevated  scales.  A  distinct  black  line  sur 
mounted  by  a  i)aler  shades  nearly  connecting  the  two  i-pots.  Second- 
aries yellowisii  fuscous,  even,  with  a  brown  terminal  line  and  paler 
yellow  fringes.  P>eneath,  powdery  yellowish,  the  apices  brown,  botli 
wings  with  a  1)rown  extra-median  line;  ]>rimaries  with  an  incomplete 
subterminal  line,  which  is  white  dotted  near  the  costa;  secondaries 
with  a  disc^al  spot. 

I'iXpanse  of  wings,  IM  to  3t  mm.  =  l.L'5  to  l..).">  inches. 

Hauitat. — California;  Vancou\(U'. 

This  species  was  collected  by  JNIr.  ily.  Edwards,  and  I  have  seen  no 
specimens  other  than  those  from  which  1  originally  described.  Only 
the  female  is  before  me  at  present,  but  the  male  ditt'ers  only  in  tin 
more  even  coloi-  of  the  i)rimaries,  the  contrasts  being  less  markc<i 
The  character  of  the  subterminal  line  further  relates  this  species  witi' 
H.  Inimiili,  while  in  the  very  distinctly  scalloped  fringes  the  species  i- 
uniipie,  dill'ering  from  all  others  of  our  forms.  There  is  little  chant  ■ 
of  mistaking  it. 

Hypena  californica,  IJohr. 

1S7().  IJelir,  Trans.  Am.  KutomolojLjical  Hoc,  III,  -J'A,  Ili/penu. 
Ground  color  a  somewhat  pa'e  yellow,  more  or  less  shot   with  re 
brown,  varying  somewhat  in  shade.     Head  and  thorax  coucoh)rou  , 
the  latter  with  the  disk  often  darker.     Abdomen  concolorous  with  tl 
secondaries.     Primaries  with  the   pale   color    jjredominating   in   th 
female,  the  brown  markings  contrasting.     In  the  male  the  wiug   •■ 


A    REVISION    OF    THE    DHLTOID    MOTHS — SMITH. 


117 


usually  mucli  darker,  ^-ray  or  smoky  in  its  shadings,  without  mitiked 
contrasts,  yet  as  a  rule  the  uiarkiiif^.^  fairly  cviflen*^.  Throu-h  the 
costal  region,  and  sometimes  the  otht  -  i)arts  of  the  wings  as  wc^ll, 
rivuhms  brown  lines  or  striga-  are  visible.  Transverse  anterior  line  of 
the  pale  ground  coh>r,  followed  by  a  line  of  the  biown  shacb',  very 
strongly  bent  outwardly,  with  long  a<Mit(i  outward  teeth  on  the  median 
vein  and  in  the  submedian  intersitace.  Transverse  postericn-  line  brown, 
often  marked  only  by  the  contrast  between  the  median  darkev  and  the 
subterminal  i)aler  shades,  in  course  slightly  sinuate,  liiu'ly  dennculate, 
with  an  abrupt  and  usually  huig  acute  inward  tooth  on  v«'iii  1 1.  Subter- 
minal line  of  tlie  pah^  ground  color,  broad,  continuous,  somewhat  dif- 
fuse, I'iither  irregularly  sinuate,  i)receded  by  a  brown  shade  wliich 
darkvUS  the  outer  half  of  the  subterminal  space,  and  additionally 
emi»'.asi'<ed  by  a  series  of  preceding  black  spots  which  sometiines 
develoj)  into  a  mo:e  i)rominent  mark  oi'  shade  opitosite  the  himl  angle. 
Apex  pale,  interiorly  nuirked  by  a  black  obli(|iU'  streak,  whi(;h  is  out- 
wardly dilluse  aiul  does  not  cross  the  subterminal  line.  A  scmmcs  of 
black  tenninal  lunules,  preceded  by  white  scales,  ['"ringes  alternated 
with  yellow  and  brown.  The  median  space  in  the  female  is  brown 
superiorly,  usually  also  along  the  transverse  ])osteri(U'  line,  and  s(nne- 
times  the  entire  hnver  part  is  also  more  or  less  maikcul  with  this  same 
color.  Ordinary  spots  marked  by  gray  raised  scales,  and  connected 
by  a  rather  broa<l  black  line,  wliich  is  distinct  in  all  the  females  seen 
by  me,  but  tends  to  become  obs.)lete  in  the  males.  A  round  dot  of 
l)lack  !'aised  Mcales  below  the  median  vein  in  the  median  space.  Sec- 
ondaries even,  pale  ocherons  oi- yellowish  white,  with  a  bro\  n  terminal 
line.  Beneath,  dull  ])owdery,  with  ])rominent,  i)road,  bron'u.  extra- 
median  lines  on  all  wings,  an  incomidete  subterminal  line  on  ])riuniries, 
a  discal  spot  on  secondaries. 

Expanse  of  wings,  2S  to  .'».')  mm,  =  1.12  to  1..".2  in(;hes. 

IlAuiTAT. — California;  \'ancouver;  lirirish  ('olumbia. 

This  species  seems  not  uncommon  locally.  Dr.  Uehr's  <lescrii>tion  is 
of  a  most  unsatisfactory  character  and  would  not  have  sulficed  to  dis- 
tinguish the  present  species  from  //,  modcstn  without  th<'  mateiial  in 
the  lly,  F.dwards  collecticm,  which  contained  compared  specimens. 

Besides  the  characters  already  enumerated  this  species  is  distin- 
guished from  both  the  i)recediug  by  the  continuous  subterminal  line, 
and  by  the  subapical  bliick  streak  which  does  not  cross  this  line.  In 
both  these  characters  it  agrees  with  //.  modrsta,  thai;  which  it  is 
larger  and  with  a  dill'erent  ground  cohn-.  The  distinctive  features  will 
be  more  fully  given  with  th(>  new  s])ecies. 

Hypena  modesta,  now  siirrios. 

Ground  color  luteous  gray  with  bluish  gray  powderings,  giving  the 
insect  as  a  whole  a  pearly  gray  ai»pearance.  Head  and  thorax  concol- 
orouswith  the  palest  color  of  the  primari»'s.     Abdonu'U  i)aler,  of  the 


p.',    , 

If-  ■:/■ 


ft 


■'.vi'- 


te    : 


'1 


118  BULLETIN  48,  UNITED    STATES   NATIONAL    MUSEUM. 

color  of  the  serondariea.  Priinarics  in  tlie  male  almoat  evenly  pearl 
to  fawn  ;;Tay,  the  maeulation  never  «listinct,  often  scarcely  traceable: 
in  the  female  the  base  is  a  pale  yrayish  luteous  more  or  less  marked 
with  brown,  and  black  ])owdered  lo  the  transverse  posterior  line, 
beyon<l  which  is  a  bluish  j?ray  shade  which  darkens  to  brown  or  smoky 
before  the  subterminal  line,  contiiniinji'  to  the  outer  nnirgin.  The  a])e.\ 
is  pale,  shari)ly  limited  interiorly  by  a  sli}j;htly  darker  tint  of  the 
darker  winf>'  shade.  The  usual  transverse  strij>'a'  are  marked  on  the 
costal  si)a('e  only.  Transverse  anterior  line  sli«>htly  palei",  broad, 
diffuse,  often  barely  traceable,  outwar«lly  bent,  and  with  two  stron<«ly 
marked  teeth,  as  in  //.  califormm.  TransviTse  posterior  line  usually 
marked  oidy  by  the  dilference  in  shade  between  the  median  and  sub- 
terminal  spaces;  sometimes,  however,  emphasized  by  a  sli<;ht  reddish 
sulfiision.  It  is  nearly  riyidly  oblicpie  to  the  subniedian  iutei'space, 
where  it  forms  an  inward  tooth  on  the  internal  vein.  Subterminal  line 
nsually  (Mmtinuous,  pale,  sometimes  preceded  by  black  dots,  often 
obsolet«'  or  marked  oidy  with  black  dots  in  the  male.  A  more  or  less 
obvious  broken  (erinimil  line,  preceded  by  paler  scales  in  the  inter- 
spaces. Ordinary  spots  marked  by  elevated  scales,  which  are  gray 
outwardly  and  black  centered.  A  little  tuft  of  elevated  scales  in  the 
median  SY)ace  below  the  cell,  and  another  on  the  median  vein  close  to 
base — this  latter  being  more  or  less  evident  in  all  the  species.  Second 
aries  a  dirty  pale  yellowish  gray,  with  a  more  or  less  marked  brown 
nnirginal  line.  Jiencath,  a  dirty  gray,  powdery,  with  a  rather  broad 
extra  median  line  on  all  wings,  an  incomplete  subterminal  line  on 
piinuiries,  and  a  discal  lunule  on  secondaries. 

Expanse  of  wings,  24  to  2t>  mm. =0.00  to  1.10  inches. 

HAniTAT. — Los  Angeles,  Cal.,  Ajnil,  -Tuly,  October. 

Nine  specimens  are  before  me,  all  of  them  from  the  United  States 
National  Museum  collection,  nuirked  "Through  C.  V.  IJiley;"  somecol- 
lected  by  jAlr.  Coquillett,  others  by  Mr.  K<)el)elc.  Of  the  hitter,  two 
bear  a  red  number  194,  indicating  biological  notes  in  the  possession  of 
Dr.  Kiley. 

This  species  has  been  confused  with  II.  cali/ornica,  with  which  it 
agrees  in  most  characters.  It  is,  however,  decidedly  smaller  in  the 
average  expanse,  and  the  wings  have  a  modest  gray  shade,  in  decided 
contrast  to  the  distinct  bright  yellow  of  its  ally,  while  the  orimmenta 
tion  is  never  so  cont  casting.  The  character  of  the  transverse  posterior 
line  is  further  distinctive,  and  so  are  the  proportionately  longer  palpi 
and  more  evidently  produced  angulation  of  the  outer  margin. 

It  is  a  somewhat  interesting  fact  that  on  the  Pacific  Ooast  thereshould 
bo  four  species  of  Jlypoia,  only  (me  of  which  extends  to  the  Atlantic 
Coast,  while  on  the  other  hand  the  species  of  Ilomolocha  are  numerous 
in  the  East,  while  none  are  peculiar  to  the  Pacitic  Coast. 


^f. 


only  jioarl 
traceable; 
^8  marked 
erior  line, 
I  or  smoky 
Tliea])ex 
int  of  tlic 
imI  on  tlio 
L'r,   l)roa«l. 
:)  strongly 
le  usually 
iiiul   SU])- 
t  reddish 
iferspace, 
ininal  line 
r>ts,  often 
fe  or  less 
fclie  inter- 
are  gray 
«vs  in  the 
close  to 
Second 
?d  brown 
ler  broad 
I   line  on 


d  States 
somecol- 
tter,  two 
ession  of 

which  it 
r  in  (he 
deiadcd 
amenta 
)osterior 
er  palpi 

e  should 
\tlantic 
microns 


LIST  OF  THF.  (;HNF.RA  AND  SPI-CIHS  (W  DVUi)]])  MOTHS 


2^^. 

L'l. 

2r,. 


[Tl,o  na,n..s  ..C  Rpooios  .voffni/o,!  i„  thiH  w„rk  uic  in  poman.     Synonyms  an.  i,,  italirR. 

Tribe  iIELIIM. 
GonuH  Ei'iZRixis,  HiiltiHT. 

1.  E.  liibrirjilis,  Goyer. 

phdalin,  Oiienr'e. 
niin-ectalh,  WiilUcr. 
viir.  ocrideiitalis,  Smith. 

2.  E.  (leiitifiilaliH,  Harvey. 

3.  ]•;.  rotiiudalis,  Wiillv«!r. 

boreaha,  Smith. 

forhesii,  Froiidi. 
■1.   E.  scobi.di.s.  (!rot<\ 
T).  E.  lanroiitii,  Smith. 
(J.  E.  iimericaliH,  (Juom'^o. 

Hcrijiiipeniiin,  Wallvor. 

7.  E.  niajoralis,  Smith. 

8.  E.  a'mnhii,  Iliibiier. 

moUi/vru,  Walker. 
her min widen,  \\"all<or. 
cffiinaUs,  Walker. 
coiicina,  Walker. 

Tril)e  UKIfMIXIINI. 


GeniiH  Z.-VNci.ooXATiiA,  Eederer. 

9.  Z.  liliiralis,  lliibiier. 

10.  Z.  ther.iliH,  Walker. 

(Ificepiriealis,  Zeller. 
(/jipsalin,  (Jrote. 

11.  Z.  mi  nor. a  lis,  Smith. 

12.  Z.  iiiconspicmalis,  (irote. 

13.  Z.  hi'vigata,  Grote. 

ohHitJfIn,  Smith. 
11.  Z.  punctiformis,  Smith. 

15.  Z.  atrilineella,  Grote. 

16.  Z.  podipilalis,  Gneiiee. 

17.  Z.  cruralis,  Giiciit^e. 

Jficrhiisalh,  Walker. 
l?i.  Z.  ob.scnripennis,  Groto. 
10.  Z.  protiunnosalis,  Walker. 

miiihiialis,  Grote. 

20.  Z.  mareidilinoa,  Grote. 

21.  Z.  ochreipennis,  Grote. 


GeiiiLs  TIoRMisA,  AValker. 

II.  absorjitalis,  Walker. 

nnhiliJ'iiKria,  (irote. 
11.   lito])h()ra,  (irote. 
II.  bivittata,  Grote. 
11.  orci  feral  is.  Walker. 

I>iij)ill(tri.i,  Grot(!. 

hnrlii,  French. 

'ieniis  I'liii.oMKTitA.  (irote. 
20.   p.  metonalis,  Walker. 
//^(r>.v<(/;,s, Walker. 
lonniUili'is,  (irote. 

27.  P.  cnmehLsalis,  Walker. 
srrrdliroDiin,  (Jrote. 

Genns  Ciivto!  ita,  Grote. 

28.  ('.  mi>rl»i(ialis,  (jnenee. 
2!l.  ('.  ]>etreali.s,  (irote. 

Genns  I?i,ki'Tina,  (inem^e. 

30.  H.  earadriualis,  (Ineiu'^e 
rloiii<(H(ilis,  Walker. 

31.  I!,  medi.'ilis,  Smith. 

32.  I!.  iiiCerior,  (irote. 

(iennH  Tkpanoi.ita,  Grote. 

33.  '['.  mynesalis.  Walker. 

lixdl'is,  (irote. 

34.  T.  lloridana,  Smitli. 
3").  T.  pailif^era.  Smith. 

Genus  I\*i;ma,  (inenee. 

3fi.  K.salnsalis,  Walker. 

hn:riroKlrnlix,  (irote. 
37.  R.  diseoloralis,  (ineut^e. 

faUiirinlis,  Walker. 

(IcnernJis,  Walker. 

IhraxaliH,  Walker. 

35.  \l.  (Vaternalis,  Smith. 
3!l.   Iv'.sol.rialis,  Walker. 

restric.taVta,  Grote. 
40.  R.  l.arvalis,  Grote. 

119 


w. 


I    '1 


120  lUJU.ETiN   48,  UNITED   8TATER   NATIONAL   MUSEUM. 


n.  IJ.clitosiilis.  Walker. 

aiilralis,  (irote. 
42.  IM'iictiosiilis.  W;ilkcr. 

jileniliiualix,  (Jroto. 

uhiliilin,  (Jroto. 
4;?.   Iv.  (Iii\  ipniK'taliH.  CJeyor. 

j}h(ih'r<>md\x,  Walker. 

heliimnlis,  Walker. 

ptintcrdlin,  CJrote. 

hclj'r<i(fii,  (irote. 

44.  !>'.  piilverosiili.s,  Smith. 

(Jeiiiis  IIyi'KN'ii-a,  (Irote. 

45.  11.  cacMiiiiiiualis,  Walker. 

bifernlin,  Walker. 
opacdHs,  (irote. 

(ienUS  HKTKRO(iRAMMA,  (Jiicu^e. 

4(5.  H.  pyrannisalis,  Walker. 
(IlliimUx,  Walker. 
rnviijeuii,  (irote. 

(ieiins  (lAUKitASA,  Walker. 

47.  Ci.  amliijjjnalis,  Walker. 
^  hij'Khtlia,  (iroto. 
9  iiicUvisalin,  Grote. 

GcnuH  Dkiscktis,  Grote. 

I  >. ',  itrea,  Grote. 
L>.  i)y)j;ma'a,  (irote;. 

(ienus  Pai.tiiis,  ITiiltner. 

1'.  aufjulalis,  lliiliner. 

ariK'iiilhiimJin,  AValker. 
]'.  aHOi)ialis,  (iueiiee. 

Tribe  HYI'KNINI. 

(JenuH  Cai'I.s,  (irote. 

52.  C.  ciirvata,  Grote. 

Genus  Sai.ia,  Hiibner. 

53.  S.  inter])uii(ta,  (irote?. 

saHfiita,  ZcUer. 
riifii,  Grote. 

54.  S.  salicalis,  Fabrieins. 

Genus  Homoi.ociia,  Hiibner. 

55.  15.  iiiaiialis,  W^alker. 


48. 
4«t. 


50. 
51. 


56.  15.  baltiinoraliH,  Giienr^o. 

/*c>n;/H«/tN,  Walker. 
laciuiosa,  Zeller. 

57.  H.  bijujjalis,  Walker. 

pnU\al\H,  Zeller. 
fccialiH,  Grote. 

58.  H.sentellaris,  (irote. 

59.  IJ.  abalinealiH,  Walker. 
fiO.  B.  (lecieptallH,  Walker. 

})emn<inUili>i,  Harvey. 
61.  H.  nmdeCaetalis,  Guent^e. 

achalinalin,  Zeller. 

damiwualis,  W^alker. 

indiicalin,  Walker. 

2>rofeela,  Grote. 
(52.  15.  sordidtila,  Grote. 
(53.  15.  nmbralis,  Smith. 
(54.  B.  torenta,  Groi^^o. 

ititvnialia  \\  Uobinnon. 

(ilhix'igrKtJis,  Zeller. 

65.  B.  ertictalia,  Walker. 

9  wlUfera,  (irote. 
^  Icnfiginosa,  Grote. 

66.  B.  citata,  Grote. 

IritiiheraJh,  Zeller. 

67.  15.  anniilalis,  Grote. 

(JeniKs  I.OMANAI.TES,  Grote. 

68.  L.  odiietalis.  Walker. 

liitiihis,  Grote. 

(ienus  Plathyi'KNa,  (irote. 

69.  P.  scabr.a,  Fabric! us. 

creclaliSy  (iuen<^e. 
palpalin,  Haworth. 
crassaiiis,  HaAvortli. 
obesalh,  Stephens. 
siihrufalis,  Grote. 

Genus  Hypena,  Schrauk. 

70.  H.  liumiili,  Harris. 

evanidaliH,  Kobinson. 
(IcrnutnaVis,  Walker. 

Yar.  olivarea,  (irote. 

Yar.  albopnnctata,  Tepp6r. 

71.  H.  decorata,  Smith. 

72.  H.  ealiforniea,  Behr. 

73.  H.  niodesta,  Smith. 


Mi-r 


ILXPLANATIOX  OF  PLATES 


i'l.A'l'K  I. 

1    r    V    1    ,     ■      ,.  ^I'ECIE.S   OK   Till.:   (iKNCS   KI'IZEUXIS. 

1-5.  h.  InbriCiilis. 

(i.  E.  «lcnticiil.aliM. 

7-f).  E,  lotuiidjilis. 

10.  E.  lorbcHii:  fro.,,  fl...  ty,,.-  i,.  Vrot...,n  Forbes'  collection. 

11.  I'i.  HCOblilll.S. 

12.  E.  laiu-ciitii :  fro,,,  tbo  male  typo. 
I'*-  ^'^-  "  IVo,,,  tl,.'  ieiiiale  typo. 
11-lG.  E.  n„,orici,li8. 

17, 18.  E.  inajorjilis:  fro,,,  two  of  tl,((  (v,)ps 
19-21.  E.  M'tuulu.  ■ 

J'l-ATH  II. 

SI'KCIKS   ()!.•    Tllic   (iKNUS   ZANCLOUNATIIA. 

1-3.  Zanclognatha  litnralis. 
4,5.  /.  thenilis. 

6.  Z.  n.inoralis :  fro,,,  tho  typo  1.,  the.-ollectio,.  of  tho  Michigan  AKricultu,-.!  College 
9.  Z.  li.'.vijr.ata:  Iron,  tbo  feinaln  type. 

10.  Z.         "  :  iy,„u  tl,o  ,„alo  type:  boti,  in  tho  .ollo.tio,,  of  the  A,„e,-ioan  E„to- 

n)o,og,cal  Sociioty. 
11-15.  Z.  bi'vigata:  iHnstratiug  variation. 
1(>.  This  (ignro  is  niissing. 

17.  Z.  lajvigata:  showing  f,„„  ],.„„  will,  partly  expanded  tnftingB 

18.  /.atril„u,olla^fro,„  the  type  in   the  .-olleetion  of  the  American  Entomological 

I'LATE  III. 

SI'KCIKS   OV   Till-.    (JKNIS    ZAXCI.OGNATHA. 

1.  /.luclognatha.  punctiforn.is:  fn.n,  the  tyn.>  in  the  collection  of  the  Tlnited  States 

National  Miisenin  :  soinewliat  enbirged. 

2.  Z.  pedii)ilali.s:  so,newliat  enlarged. 
•^-  ^-  "  :  niitiiial  size. 

'!-(!.  Z.  cruralis. 

7.  Z.  obscuripennis:  fro,n  the  type  in  the  collection  of  the  American  Entomob.gical 
Society:  somtwliat  enlarged. 

8-12.  Z.  i)roti,miiosalis. 
13.  Z.  protninnosalls:  somewhat  enlarged. 
It.  Z.  niai-cidilinea:  soniowhat  onlaiged. 

^'''  ^-  "  =  ^'""'»  ^''''  typo  '»  tl'e  collection  of  the  An,erican  Entomological 

Society:  Noinewhat  enlarge4l. 

16.  Z.  marcidilinea:  from  typical  speciniens  in  the  cUlectiouof  the  American  Ento- 
mological Society;  slightly  enlarged, 

121 


122  HULLETIN    IS,  UNITED    HTATKS    NATIONAL    Ml.SHlIM. 

17,  IH.  Z.  oiliroip«nniH:  from  two  of  tlni  typcH  in  tlio  colUM'tion  of  tlio  Aiiioriciiii  V.wUt 

inolo^tiriil  Society. 
V.y-til.  'A.  oclireipounis:  all  Hoincwiuit  t-iilarKod. 

I'LATK  IV. 

8rK<!Ii;.><  OK    iriK   (IKM-.lfA    liOKMISA,  I'llILl  iMK  I'UA,  CM  Y  ToUT.V,  AND   TKTANOMTA, 

1,L'.  lloniiiHii  iilmorptallH 

;S.   II.  litopliora. 

4.   II.  liivittiitii. 

.'>.  II.  orcildialis.  « 

(1.  II.  "  :  from  the  typoof /'(j/Zar/iim  H«r/»Mu  tliocolleotion  of  S.  A.  ForboN. 

7.  H.  I'iiilomi^tra  mclonalis. 
}),  10.   1'.  cumclu.saliH. 

11,12.  Chytolita  iiiorhitlaliM. 

13-15.  C.  potioali.s. 

lfi-18.  TetaiHtlitii  mynosallH. 

lit-1'1.  T.  lloridana:  Iroiii  (he  types  in  tlie  collection  of  liie  Unitcil  ytafcos  National 

iMnNonm. 
22-24.  T.  i)allij,'('iii. 
All  tli«  lij^iircs  aiv  slijjlitly  c  nlari,fO(l. 

PLATE  V. 

8PRCIK8  OF  THR  OK.NKUA  HLKI'TINA,  IlKTKUOfiRAMMA,  CiABKRASA,    l>KIJ<  K.TI.S.  AND 

PAI.riMS. 

l-.">.  Bh'ptina  caradrinalis:  all  somewliat  enlarged. 
(i-7.  1$.  modialis:  from  tlic  typoH. 

8.  H.  Inferior. 

9.  H.      "         :  from   tlio   tyjx'  in   the,  collection  of   tho    American    Eutomolopfiral 

Society:  a  little  enlarfred. 
10,11.  lIeterou;ranuna  pyramnsalin. 

12.  (iaberasa  aml)i<j;nalis:  male. 

13.  "  "  :  male:  nnieh  enlarged. 
14-ir..     "                 "          :  female. 

Ifi.  "  "  :  female:  mndi  enlarifcd. 

17.  Dereeti.s  vitrea. 

18.  "        py^nnea. 

10.  I'althis  anjjnlalis:   feniiile. 
20.         "  "        :  male. 

21-22.  *'  "        :  female:  liotli  ninch  enlarged. 

23.  "  asopialis:  male. 

24.  "  "        ;  s.'ime,  much  enlarged. 

25.  "  "         :   female. 

PLA  TE  VI. 

SPKCIi:s   Ol-   TIIK    (JKNl'S   REXIA. 

1.  R.  salnsalis:  male:  a  little  enlarged. 

2,3.  R.       •'      :  male:  from  types  of  iZ. /»Tr;n>.sfm/(.s  in  the  collection  of  the  Aniericiin 

Entomological  Society  :  somewhat  enlarged. 
4,8.  R.  diacolor.alis:  showing  variations. 
9,10.  R.  fr.aternalis :  from  types    in  the  collection  of  the  United  States  National 

Mnsenm. 

11.  R.  faetiosalis. 

12-14.  R.  "        from  types  of  /,'.  ptcniUncalin  in  the  collection  of  the  American 

Entomological  Society. 
15-17.  R.  faetiosalis. 


m-^ 


•I'icaii  Kiild 


Lmcricaii 


uiencaii 


A    REVISION   OF   THK    DELTOID    MOTHS— SMITH.  123 

n.ATE  VH. 

SI'I'.t  IKS   ()!.•   TiiK   (iioNt's   RRNIA. 

:;7''t;,xt,-;,: «;—;:,:;, — "- " 

J- 1.  U.  HolirijiliH, 

'  "•  "■  ""■«::;::;■:  r,,;-;:,.;:,,' -- ■ a,„„h,.„„  k,.™,.,,,.., 

7.  K.  Inrvulis. 

8.  K'.  clitoHiiliM. 

"■  "•  "'"'ZrX.SZ  ^:X  •"  '■■■  '"'*"-'  '"  ' - '  '^«  An. 

10-11.   U.  Ilavii»iiii(tjili.s. 

in.  Hi.  K.  llavii.nncti.IiN:  coi.si.leral.Iv  onlarKod 

"■  '"■  "■ "";::::;?  l:i;::;  ;^cv""  """"""""  ■"  '■"- "-'« ^'"'"  ^•"-"' 

1!'.   I>'.  larvaliH.  "     . 

PLATE  VIIL 
.nK.„K,  OK  T„n  c.K».„A  „v,..x.n,.,  „,„„,  ,,,,,,  ,„„,,,„,,,  ^^„  ^ 
1,2.  ll.vpcniiLa  caomniiialiN. 

3.  C'apis  curvata. 

4.  Saiiasallcalis. 

5-7.  LomanaltcN  odiu-talis. 

8.  Boiiioloclia  nianalis:  foinalo. 


9. 

<< 

"       :  iiialo. 

10. 

(( 

ItaJtimoraliH:  malo. 

11. 

ii 

■'          :  f'oinalo. 

12. 

ti 

.scutcllaris:  Iciiialc. 

13. 

It 

l)i.jiiKalis:  leinalo. 

14. 

u 

:  male. 

15. 

a 

scntellariH:  nialo. 

16. 

<< 

abalinealis:  female. 

17. 

<< 

:  main. 

18. 

<( 

deceptalis:  iiialii. 

19. 

(< 

"         :  fomal.!. 

20. 

(( 

miihralis. 

21. 

'< 

torcnta. 

PLATE  IX 

Sl'KCIKS    or   TlIK    (iENKIJA    nOMOLOCII.V,  I'LATHYPKNA,    AND   IIYPENA. 

1.2.  Bomoloclia  macielactalis:  female 

•^-  "  "  :  male. 

'*•  "  .sordidula:  male. 

^'^'-         "  "         ■  female. 

7-  "  edictalis:  male. 

^-  "  "        :  female. 

!>•  "  citata. 

10.  Platliy])ena.scal)ra:  male. 
1^12-       "  "      :  female. 

13.  Hypena  liumiili,  var  albopmictata. 
14-        "  "      :  male. 

15.  "  «<       :  female. 

16.  "       decorata:  male. 

17.  "        <'alifornica:  male.  " 

18.  "  "  :  female. 

19-21.  "       modesfca:  from  types  in   the  eollectiou   of  the  United  States  National 
Mnseum. 


w 


V>\  nm.UiTIN   4H,  UNITED    STATKS    NATIONAL    MUSEUM. 

PLATE  X. 
sTHi'cTi'it.vr.  (  iiAiiAt  irits  oi    iii:i,iini  anii  iikiimimim. 
1.  Epi/.tMixiK  Inldic'iiliH:  iintoiiim  i»l'  iiiiilc  tioiii  Hidf  lu'fir  Ihihc  uikI  near  tip. 


3. 
S. 
4. 
6. 

e. 

7. 
8. 
0. 

10. 
11. 
Vi. 

13. 
14. 
15. 
16. 
1/. 
18. 
19. 


(I 

n 


'•         :  iiiitciiiia  <»t'  I'cnuilo. 
lore  W)i  t'l  limit'  in  till  HjiccicH, 

vdiiiitioii.      riiis  iH  tlit^  iiHiiiil  ty|ii>  ill  all  ili>riiiiiiiiiii. 
(lonticnliiliH:  antenna  urniali'  iVoni  b.low.  lunr  llaH(^ 

"  ;  Haiiic  fViiiii  side  iiriir  I i|i.  « 

"  :  ii  Min^iir  joint,  ;;icuti\  t<nlarn<'<l. 

lanrtMitii:  iiiilriiiiii  ot'nnilc>  toward  iniddhs  Ironi  IkOow. 

"       :  antt-nna  of  I'cnnilc  toward  tip;    E.  miiiila,  tcnial«s  is  vit.v 
Niinilar. 
ro1iiinl;iiis:  antcniiM  ot'iicilc  toward  li:iHf. 
'•         :  sann^  towanl  tiii. 

"         :  iiiitiMiini  of  li'iiiiiio:   Unit  cd'  <imiiiiiilis   is  |ira(ticall.v  tln' 
same. 
scohialiH:  antonnn  of  nialo  mar  l)aHe. 
•'         :  sann!  near  ti)). 
"  :  antfniia  of  tViniilr. 

n-iiniia  :  anlcnnaol' iiiiiir  near  tip. 

"      :   siiinc  iirai'  \);\<.i\ 
aniericalis:  iintniiiii  oi'niali'  near  iniddlo. 
Iiihricalis:  palpiiH. 


20.  Zani  lognatha  litnralis:   lore  Icj;  ot"  nude 


21. 
22. 

23. 
24. 
25. 
26. 
27. 
28. 
29. 


« 

n 


:  Hpi'('iali/*-d  Joints  ol'niali-  antt'iina. 
"       :  nnilr  niitcnna  near  tip.     ('ln)toJiln  inordiduliH  is  piacti- 

callv  lilvc  tliis  :it  tin-  saniu  ]>oint. 
"       :    antcnini  of  foinaic 
tlMiralis:   lore  i(;<>dt  imiltv 

'"      :  sp(U'iaii/ed  joints  of  limits  aiiteun.'i. 
'•       :  male  antenna  in';ir  tip. 
'•       :  antenna  id'  female. 
niinoralis:   fore  le;;  oi  male. 

'•         :  s])e('iiili/(  d  Joints  of  male  antenna:  towanl  tij)  it  is 
nineii  as  in  llirrdliH. 


ri>A'l'K  XI. 

STIUCTIIiAI.   <  llAIiAC  TKHS    OI"    ItrnMINIIM. 

I.  Zan(do<;nat!i;i  ],e\  ij-iita  :  fore  iejj  of  male. 


2. 
3. 
4. 
5. 
6. 

7. 

8. 

9. 
10. 
11. 
12. 
13. 
14. 
16. 
16. 


11 


:  specialized  Jo  lit.'  of  male  ant(!nna :  exceptional  form. 
"         :  same:  nsnal  foiiii. 
))iinetiformis:  fore  le.<>'  of  male. 

:  s]ieeiali/('d  Joints  of  male  antenna, 
jiedijiilalis:   lore  legof  m.ile:  ohHcut'q>enntn,orhrnitemi\s,  minUnaVis, 
and  iiKircidHhied  are  esHentially  tlie  same. 
:  HptMJali/ed  Joints  of  male  antenna. 
:  male,  antenna  near  tip. 
crnralis:  tore  le<j  of  mule. 

"        :  male  antenna  .-it  middle. 
'•       :  specialized  jointH,  further  enlarged, 
niareidiline.t :  s))ecialized  Joints  of  male  antenna 
•  lelireipennis:  "  "       "       "  " 

minim.'ilis:  "  "       '•■       <<  " 

ol»seiiri]iennis:  "  "       "       "  " 

"  :  antenna  of  female. 


imi 


A    UKVLSION    OF   TMi.;    dkltoiI)    MOTHS— SMITH.  125 

I'LATK  X!I. 

STKI  (11  IIAI.   (  MAI:A.  Tl:|tM    UK    II  KltAIINUNI. 

I.  riiiloiii».trueiiiiM,lH8iiIi.s:  (•„lt)l.uot•mJll.• 
:  malt'  fintfiiiui. 
'^*  ■'  inotuiijilis:  (oic  Ii'h  oC  i„n|,.. 

■*■  "  "        '•  "'^;'";'-"«>"';^-     '•"'..-.  (ij,,,,-.,.. ,..,  drawn  to  tlu,.auH,sr«l„ 

•'""•   ""•  <l'>».'.viu„s  n.  «,,„   i.awoon   .ho  t,„o  s,M.,i..H  aro 
puipoitioimlly  (oimct. 

Miiiiilar. 

J"         'I  ^"  =  '*1"'''"1">^<'«1  ,i<'inl.s(,r  nialrant.'niia. 

"  •  'iHiiij;!"  joint  ,  ear  ha.st-. 

,^'         "  '''"l''"".i:  Hpcrializo.l  Joint  (if  ii.ah.  aiii.-iMia. 

•'.  ('hy...lita  niorl.idalis:   ,ore  !..«  of  n.alo.  Ti.at  of  ,Wm,/.  .  .n.ilar,  hnt  only 

iiall  tint  size. 

??•  "  "  ■  '*I'«'<'iiin/.Hl  joints  of  niul.)  antenna. 

18.  "  potiouIlM:  "  X        .1      i.  u 

14.  nieptinucarailiinaliH:  antonna  of  male. 

15.  "  niodialin:  "         "       " 

16.  "  inferior:  "        •<       •< 


PLATM  XI 11. 

STHtK'TCUAI.   CIIAISAITKUS   oK    IIKltMI.N'tl.M. 

1.  Jileptinu  caradrinaliH:  fore  I.,  of  n.al..       ,/.//„//.  ...d  /»/«ware  pra.ti.-ally  the 

sanif. 
^-  "  ''  :  venation  of  liotli  wings. 

'S.  Tetanolita  lloridana:  foro  lej.  of  male.     I'nilii/crn  i.s  o.sentially  like  tlii.s. 

=  iiutenna  ..f  mah'  toward  tip:  toward  base  it  in  mncli  as  in 

^'  "  iii.vneHal i.s:  fore  leg  of  male. 

^-  "  "         :  spt'cialized  portion  of  inalo  antenna. 

'  ''  "         =  ^'•""'t'""  "'■  primary  at,  end  olsul»(;o8tal. 

^'  "  piilligera  :  .specialized  part  of  male  antenna. 

9.  llypennla  eaennnnaliH:  fore  leg  of  m.ile. 
^^-  "  "  .  antenna  of  male  toward  tip. 

11.  Hoterogramma  i>yramnsalis:  fore  leg  of  male. 

"  antenna  of  male. 

l.'l  Characteristic  antenna  of  Konia. 

14.  Venation  of  2)riinarie8  in  Henia. 

15.  Renia  salnsalis:  foreleg  of  male. 

10.       "      llavipunctalis:  foreleg  of  n.ale:  all  the  species  are  like  one  or  the  other  of 
the  forms  here  figured. 

17.  "     salusalis :  specialized  joints  of  male  antenna.     The  hair  tnft  omitted  in  all 

thcfjo  figures.     DiicolnraliH  is  very  similar. 

18.  "      sobrialis:  specialized  joints  of  male  antenna. 
11'.     "     larvalis:  "  "       "     <«  << 

20.  "     ditosalis:  "  ••       ><     "  .< 

21.  "      flavipunctalis:  "  "       "     "  << 

S"p'ln^"^T"-'"''     "  "       "     "  ''  ^«^'''«««''«iB  practically  hkethi^ 

^6.  Palpus  of  Renia. 


126  BULLETIN    18,  UNITED    STATES    NATIONAL   MUSEUM. 


I'LATE  XIV. 


tf 


rt^ 


STRUCTURAL  CIIAKACTKU!-!   <)l<"    HKKMlNIINI    AND    HYI'KNINI. 

1.  Gaberiisa  luiibiguiilis:  venation  of]tiiinary  of  male. 

2.  •'  "         :  palpus  of  male. 

3.  "  "         :  fove  leg  of  male. 
4.Dercoti8:  venation  of  both  wings. 

5.  "  :  male  ualpu.s. 

().  "  vitrea:  lore  leg  of  male. 

7.  "  "       :  antenna  of  mule. 

8.  ''  pygiuica:  forci  leg  of  male. 
U.  "  "        :  antenna  of  nnile. 

10.  Vdiatioii  of  primaries  in  I'althis. 

11,  PaltUis    isopiiilis:  fore  leg  of  nuile. 
1-.        •'  •'  :  palpus  of  malt;. 

i'i-        "  ''  :  antenna  of  male.     (rrt6e/'a«a  is  also  like  this. 

11.        "  "         :  palpus  of  female. 

Ii5.        "  •'         :  specializ* 'I  guarded  pits  of  male   pa';ii,  from  which  the  hair 

tufts  issue.     The  structure  in  <iiigiiliilin  is  essentially  the 

same  but  smaller  throughout. 

16.  Venation  of  Momolocha;  and  this  is  essentially  the  same  in  all  Hypenids. 

17.  Fort!  leg  ol'the  male  llypeiiiui. 

18.  Autenna  of  male  in  tiie  llypeuini. 

19.  Palpus  of  Bomolocha. 


U.  S.   NATIONAL  MUSEUM 


BULLETIN  48,  PL.  I 


I) 


WVW^ 


12 


;r-v 


13 


jji 


21 


SPECIES  OF   THE  GENUS  EPIZEUXIS. 
iFiir  e.\|ilaiuMl<iii  of  jiluti'  see  |iaK<'  1^1.) 


■*    .• 


M 


■.■':» 
v.-S 


U.   3.    NATIONAL  MUSEUM 


BULLETIN  48,   PL.   II 


12 


3 


■*:' 


SPECIES  OF  THE  OENUS  ZANCLOGN ATHA. 
I  I'lif  cxiijimation  nC  |i|:itc  mv  1)ii;;c  1','1. 


U.   S.    NATIONAL   MUSEUM 


BULLETIN  48,   PL.  I|i 


i-.-'K 


SPECIES  OF  THE  GENUS  ZANCLOGNATHA. 
(For  exiiliiiiatiiiii  of  plale  sec  jtagt'  I'Jl  i 


U.  S.   NATIONAL  MUSEUM 


BULLETIN  48,  PL    IV 


v>feP  '*!'- 


12 


16 


SPECIES  OF   HORMISA,    PHILOMETRA,  CHYTOLITA,  AND  TETANOLITA. 
I  For  HxiiliiuaiiDii  nf  |)late  see  paK*'  1--.  i 


FT^. 


U    S.    NATIONAL  MUSEUM 


BULLETIN  48,    PL.  V 


SPECIES  OF  BLEPTINA,    HETET-tOGRAMMA,   GABERASA.   DERCETIS,   AND  PALTHIS. 
(For  expliiimtiiiii  of  plate  see  \miitf  r,'-'. i 


m 


U.   S.   NATIONAL  MUSEUM 


BULLETIN  48,  PL.  VI 


^       ,/ 


SPECIES  OF  THE  GENUS  REMA. 
(For  t'X|ilaiiaiiiiii  '>i'  \>h\xr  Sf'c  paK*'  i'~~ 


hi 


I 


U.  9.  NATIONAL  MUSEUM 


BULLETIN  48,  PL.  VII 


SPECIES  OF  THE  GENUS  RENIA. 
(For  <'.\|iliiii;ilii)ii  of  |ilaii-  sim-  pap-'  I'-^'K 


U.  S.  NATIONAL  MUSEUM 


BULLETIN  48,  PL.   VIII 


SPECIES  OF  HYPENULA,  CAPIS.   SALIA,   LOMANALTES,   AND   BOMOLOCHA. 


m) 


11 


U.    S.    NATIONAL  MUSEUM 


SPECIES  OF  BOMOLOCHA,   PLATHYPENA.   AND   HYPENA. 
i  For  t'xpiaiiatiiiii  uf  |iliitf  sc.'  \mnf  I'-i'-i.) 


ll 


■  I 

II 


U.  S.  NATIONAL  MUSEUM 


BULLETIN  48,  PL.  X 


'^^f^'^^^^S^ 


STRUCTURAL  CHARACTERS  OF  HELIINI  AND  HERMINIINI. 
iFor  fxplaiiatidii  of  plate  see  imjrc  VH.) 


I 


U.  S.  NATIONAL  MUSEUM 


BULLETIN  48,  PL.  XI 


STRUCTURAL  CHARACTERS  OF  HERMINIINI. 
iFor  explunatioii  of  i>late  see  piijje  l-,'4.) 


i 


'    i  ,' 

'   5  1 


U.  S.   NATIONAL  MUSEUM 


BULLETIN  48,   PL.   XII 


STRUCTURAL  CHARACTERS  OF  HERMINIINI. 
(For  explauiition  of  plate  see  pa^e  1S5.! 


;'  ;j 


ii' 


ll 


U.   S.   NATIONAL  MUSEUM 


BULLETIN  48,   PL.   XIII 


STRUCTURAL  CHARACTERS  OF  HERMINIINI. 
(For  exi)lanation  of  jilatc  see  juifje  la.").) 


U.  S.  NATIONAL  MUSEUM 


STRUCTURAL  CHARACTERS  OF  HERMINIINI  AND  HYPENINI. 
(For  oxplanntioti  of  iilutc  see  jmge  1C6.) 


itll 


w      li 


I 


IN  I)  i:x 


[Tribal  .ind  Family  iianu'H  an;  iu  capitals.     Generic  iiaiiu-H  bcgiu  witli  cajiitals, 
and  specilic  iiaiucs  witli  lower-case,  letters.     Synoiiyiiis  are  iiriiited  in  itnlicn.] 


ahiilineali.s iCi,  1)5,  100  i 

absorptalis 46 

aclinliihilis !«.  lOL' 

aaknowleilgiiicnts l,'{  . 

a-niulii ,. 17,2(5  ' 

(ilhis'KjnuliH 10;")  ' 

alboinuictala Ill 

alutal'iH 07,  7;{  I 

aml)i<;uali8 SI 

aiiiericalis 17,  L'lJ 

auf-ulalis 85,  ^(i 

■nimilalis 94,108  i 

anteiuial  i>cculiaritie.s 5 

aravinthuHuliH Sfi 

asopialis So,  «G,  87 

atriliii(!<;lla 30.  31,  38 

baltiiiioralis , !»3,  <)"., '•(> 

bvlfnt<in 71 

hen  hjiialin 96 

bifiniHa 77 

bijidalix 81  ' 

bijuKalis !t3,  9.".,  97 

bivittala 16,  18 

lUeptina 9,  11,  57 

Homolocha 11,  14,91 

borcaHii 20 

breriro/ilralis 66,  (iS 

cacuminal  i,s 77 

cadiieatis 93,  102 

calil"(irnica 113,  114,  116  ' 

CapiH 11,  14,88 

caradrimil i.s 58  ! 

veiilfdUx 6t<,  ()7,  72 

Chytolita 10,  11,51 

citata 91.9,5,107  ' 

I  hinnma 84 

(lepUmila 27.28,39  ; 

clitosalis : 67,  68, 72  i 

vloiiiastilii 58 

Colobocliila 89 


Ccdors  and  niarkinji;s 

fonrina 

ir<(.ss(itit8 


Page.  ' 

3 

26 

Ill 

cruralis 30,32,40 

curvata 88 

danniosdlis 93,  102 

dcccptalis 93,  95, 101 

dcceiitiifd  lix 29,  33 

decorata 1 13,  1 16 

l)i:i;r(tii).s:  rank  and  >*trnctnrc. .  1 

dcnticulali.s 16, 17, 19 

Dercotis 10,11,82 

discoloralis 66, 68, 69 

dnlt-apparatc 8 

edictalis 94,  95, 106 

cductalis 109 

cffitxalix 26 

Kpi/eiixis 4, 14, 15 

Krastr  ia 94 

crerlalix Ill 

Kiihiijicmi 91 

h'utinlnni't 80 

ennu'liisalis ,50,51,53 

iridiiilalix 1 14 

lactidSJilis 67,68,73 

fdlliici'ilix 69 

launal  raii;;c  of  j;roni) 12 

ftcidlix 97 

llavipnnctalis 67, '"8,  7  • 

tloridana 62,63 

JoHnsii 20,  21 

fraternal  is 67, 68,  70 

functions  of  antcnn.'il  structures.  6 

IcH  .•.Iriiitiircs 8 

(;abcrasii 10, 14, 80 

<iao,i((Iix 51 

yvncniUx 69 

geographical  distribution 11! 

(leniiiiiiiiiix 114 

(/jiamilix 79 

127 


128 


INDEX. 


w4 


giip^alis 33 

Habits  of  the  Hi)ocie8 V2 

hartn 49,50 

HcUa 1') 

IIKUINI 4,13,11!> 

heliusalis "I 

Hevmiina 54. 55 

Hkuminiini    4,13.110 

herminio'uh'H -0 

Hfteroffiauinia 10, 14,  78 

Honnisa 0,  14,45 

hninnli 113,114 

llvpeua 12,14,112 

Hyi'EXINI 11,114,120 

Hypeiiiila 10,  14,  7G 

idinisalis 108 

Idindolosa 26 

inconspiciialis 29,  31.  35 

iii'Misalis 94 

hidirimlis 81 

int'eiioi' 58,  61 

intcrtialis 105 

intcrpiimta 89,  90 

jacvhuxaliH 40 

laciniosa 96 

latuUifi 109 

lii'vi<i;ata 30,  31.  36 

larval  cliaracterrt 13 

larvalis 67, 68,  72 

laurentii 16,17,22 

leg  structures 6 

leiilijihiono 106 

lineiirh 46 

Litofinatha 45 

litojiliora 46,  48 

litinalis 29,31.32 

lixdUn 63 

LoiuaiiMltes 12,14,109 

loiinUahrix 51 

luhricalis 1(>,  17 

M(icrh\i}K'U(i 91 

luadcfactalis 93,  95,  102 

Mtidopa 89 

iiiajoi  .ills ...   16, 17, 25 

inaiialis 92, 94,  95 

marcidiliiiwi 31,32,43 

iVardarii 84 

nmikiiifrs  ami  colors 3 

mcdialis 58.  60 

Mcfiadnita 27,  28 

Mefihijpena 91 

nietoualis .50,51 

Microphiixa 23,  26 

miiiimaliy 31,  42 

luinoialis 29,  31,  34 


Paffo. 

inito<frapi»a 94 

niodesta 113,  114, 117 

moUiJ'na 26 

morbidalis jiS,  .56 

iiiynesiilis 62,63 

iiiibilifdKv'm 46 

obesulin Ill 

obsciuipeiiiiis 31,  32,  41 

obsoleta 30,  36 

ocvldciiiaUx 18 

ochreipennis 31,  32,  44 

olivacea Ill 

opacaViH 77 

orciferalis 46, 49 

ornamentation 3 

Pacilic  coast-species 12 

Palltich  ira 45 

!  pdWidlis 97 

i  palli-icra 62,64 

palptiViH Ill 

palpi,  sexual  uiodilicatious  ol". ..  10 

Palthis 10,14,84 

pimtDralls 74 

pedipilalis 80, 32, 39 

peraiiguldlis 93, 101 

potrealis 55, 56 

pluvalis 18 

VhtiUvnophuna 78 

phdlcroxalix 74 

Pbiloiuotra 9, 14, 50 

I'iiiiulila 27,  28 

riathypeua 12, 14, 1 10 

pUniliuealis 67,  73 

profceta 93, 102 

protuninosalis 31,  32, 42 

l'8eud(i<ilonna 15, 16 

Pseudoryuia 3 

pulverosalis &?•,  75 

pnuctiiorinis ,50,  31,  37 

pupilUiris 49 

py jL!;nia'a 83,  84 

pyraunisalis 79 

Renia 10,11,65 

restrlrlal'm 67, 71 

Kivnla 3 

rotuiidalis 16,  17,  20 

rufa 90 

rurhjrna 79 

.Salia 11.14,89 

salical  is 89, 91 

stxiigiia 90 

saliisalis 66,68 

Hcabra Ill 

scent  orjrans 8 

scobialis 16,  17,  21 


INDEX. 


121) 


Pago. 

94 

113,114,117 

26 

;)5,  56 

-  -  -   ()2, 63 

46 

111 

..  31.32,41 

-  -  -   30,  36 

18 

..  31,32,44 

lU 

77 

.  -  -   46, 49 

3 

12 

45 

97 

...   62,64 

111 

10 

.  - 10,  14,  84 
74 

-  30,32,39 

-  -  93, 101 

55, 56 
18 
78 
74 
..  9,14,50 
- .   27,  28 
12,14,110 
.  -   67,  73 
. .  93, 102 
.  31,32,42 
15, 16 
3 
...  68,75 
30,  31,  37 
49 
.   83, 81 
79 
10,11,65 
.   67, 71 
3 
16,17,20 
90 
79 
11,11,89 
.   89,91 
90 

-  66, 68 

111 

8 

16,17,21 


scripHpennis 

ficutelliiris 

senses  in  the  aiitonm 

serrnticornis 

Sisi/rhifpetia 

sobriiilis 

sordidnla 

siibrufalis 

mirrectalis 

Tetanolita 

tberalis 


7S02_Xo.  48- 


Paga 

23 

.  93,95,98 

6 

53 

45 

•  fi7,08.  71 

94,  95,  103 

111 

18 

'h  9, 14,  Gl 

.  29,31,33 


thvaxalis ^'''-^;^ 

toreiita..  ""n.  «- 

Jortriaxha ' 

trUiihvralis -^_ 

tiU'tiufi;s  of  the  Ic-s. .       -  o 

""ii'iaiis ;  ;,,  „.  ';, 

"'"•^:r'' 106 

venation  of  tbo  group ...  o 

V'trea 

/^auclogiiatba on  .,- 


